diff --git a/web_widget_float_formula/README.rst b/web_widget_float_formula/README.rst
index 092e8aed1..4804167ea 100644
--- a/web_widget_float_formula/README.rst
+++ b/web_widget_float_formula/README.rst
@@ -44,7 +44,7 @@ http://www.youtube.com/watch?v=jQGdD34WYrA.
 
 .. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
    :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/162/9.0
+   :target: https://runbot.odoo-community.org/runbot/162/10.0
 
 Known Issues / Roadmap
 ======================
diff --git a/web_widget_float_formula/__manifest__.py b/web_widget_float_formula/__manifest__.py
index ac1dec595..888b1be3d 100644
--- a/web_widget_float_formula/__manifest__.py
+++ b/web_widget_float_formula/__manifest__.py
@@ -6,7 +6,7 @@
 {
     'name': 'Web Widget - Formulas in Float Fields',
     'summary': 'Allow use of simple formulas in float fields',
-    'version': '9.0.1.0.0',
+    'version': '10.0.1.0.0',
     'category': 'Web',
     'author': 'GRAP, LasLabs, Odoo Community Association (OCA)',
     'website': 'http://www.grap.coop',
@@ -17,6 +17,6 @@
     'data': [
         'views/web_widget_float_formula.xml',
     ],
-    'installable': False,
+    'installable': True,
     'application': False,
 }
diff --git a/web_widget_float_formula/static/src/js/web_widget_float_formula.js b/web_widget_float_formula/static/src/js/web_widget_float_formula.js
index 76f5dd13a..065d5acf2 100644
--- a/web_widget_float_formula/static/src/js/web_widget_float_formula.js
+++ b/web_widget_float_formula/static/src/js/web_widget_float_formula.js
@@ -15,7 +15,7 @@ odoo.define('web_widget_float_formula', function(require) {
             for (var f in this.fields) {
                 if (!this.fields.hasOwnProperty(f)) { continue; }
                 f = this.fields[f];
-                if (f.hasOwnProperty('_formula_text')) {
+                if (f.hasOwnProperty('_formula_text') && f.$el.find('input').length > 0) {
                     f._compute_result();
                     f._clean_formula_text();
                 }
@@ -35,9 +35,10 @@ odoo.define('web_widget_float_formula', function(require) {
         var field_float = require('web.form_widgets').FieldFloat;
         field_float.include({
             start: function() {
+                this._super();
                 this.on('blurred', this, this._compute_result);
                 this.on('focused', this, this._display_formula);
-                return this._super();
+                return this;
             },
 
             initialize_content: function() {
@@ -57,7 +58,7 @@ odoo.define('web_widget_float_formula', function(require) {
                 } catch (ex) {
                     return false;
                 }
-                var clean_formula = formula.replace(/^\s+|\s+$/g, '');
+                var clean_formula = formula.toString().replace(/^\s+|\s+$/g, '');
                 if (clean_formula[0] == '=') {
                     clean_formula = clean_formula.substring(1);
                     var myreg = new RegExp('[0-9]|\\s|\\.|,|\\(|\\)|\\+|\\-|\\*|\\/', 'g');
@@ -85,7 +86,9 @@ odoo.define('web_widget_float_formula', function(require) {
             _compute_result: function() {
                 this._clean_formula_text();
 
-                var formula = this._process_formula(this.$el.find('input').val());
+                var input = this.$input.val();
+
+                var formula = this._process_formula(input);
                 if (formula !== false) {
                     var value = this._eval_formula(formula);
                     if (value !== false) {
@@ -100,7 +103,7 @@ odoo.define('web_widget_float_formula', function(require) {
             // Display the formula stored in the field to allow modification
             _display_formula: function() {
                 if (this._formula_text !== '') {
-                    this.$el.find('input').val(this._formula_text);
+                    this.$input.val(this._formula_text);
                 }
             },
         });
diff --git a/web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js b/web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js
index 808dd56e2..1d7b194da 100644
--- a/web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js
+++ b/web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js
@@ -11,8 +11,8 @@ odoo.define_section('web_widget_float_formula', ['web.form_common', 'web.form_wi
         var field_manager = new form_common.DefaultFieldManager(null, {});
         var filler = {'attrs': {}}; // Needed to instantiate FieldFloat 
         self.field = new form_widgets.FieldFloat(field_manager, filler);
-        self.$element = $('<input>');
-        self.field.$el.append(self.$element);
+        self.field.$input = $('<input>');
+        self.field.$label = $('<label>');
     };
 
     test('Float fields should have a _formula_text property that defaults to an empty string',
@@ -98,28 +98,28 @@ odoo.define_section('web_widget_float_formula', ['web.form_common', 'web.form_wi
     test('._compute_result() should not change the value of the associated input when it is not a valid formula',
         function(assert, form_common, form_widgets, core) {
             window.test_setup(this, form_common, form_widgets, core);
-            this.$element.val('=2*3a');
+            this.field.$input.val('=2*3a');
             this.field._compute_result();
 
-            assert.strictEqual(this.$element.val(), '=2*3a');
+            assert.strictEqual(this.field.$input.val(), '=2*3a');
     });
 
     test('._compute_result() should not change the value of the associated input when it cannot be evaled',
         function(assert, form_common, form_widgets, core) {
             window.test_setup(this, form_common, form_widgets, core);
-            this.$element.val('=*/');
+            this.field.$input.val('=*/');
             this.field._compute_result();
 
-            assert.strictEqual(this.$element.val(), '=*/');
+            assert.strictEqual(this.field.$input.val(), '=*/');
     });
 
     test('._compute_result() should behave properly when the current value of the input element is a valid formula',
         function(assert, form_common, form_widgets, core) {
             window.test_setup(this, form_common, form_widgets, core);
-            this.$element.val('=2*3');
+            this.field.$input.val('=2*3');
             this.field._compute_result();
 
-            assert.equal(this.$element.val(), '6');
+            assert.equal(this.field.$input.val(), '6');
             assert.strictEqual(this.field._formula_text, '=2*3');
     });
 
@@ -129,7 +129,7 @@ odoo.define_section('web_widget_float_formula', ['web.form_common', 'web.form_wi
             this.field._formula_text = "test";
             this.field._display_formula();
 
-            assert.equal(this.$element.val(), 'test');
+            assert.equal(this.field.$input.val(), 'test');
     });
 
     test('.start() on float fields should add a handler that calls ._compute_result() when the field is blurred',
diff --git a/web_widget_float_formula/tests/test_js.py b/web_widget_float_formula/tests/test_js.py
index 4e6b155e4..68a3608ca 100644
--- a/web_widget_float_formula/tests/test_js.py
+++ b/web_widget_float_formula/tests/test_js.py
@@ -2,14 +2,15 @@
 # Copyright 2016 LasLabs Inc.
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
 
-from openerp.tests import HttpCase
+import odoo.tests
 
 
-class TestJS(HttpCase):
+class TestJS(odoo.tests.HttpCase):
 
     def test_js(self):
         self.phantom_js(
             "/web/tests?module=web_widget_float_formula",
+            "console.log('ok')",
             "",
-            login="admin",
+            login="admin"
         )
diff --git a/web_widget_float_formula/views/web_widget_float_formula.xml b/web_widget_float_formula/views/web_widget_float_formula.xml
index 63857f779..64dcfed7f 100644
--- a/web_widget_float_formula/views/web_widget_float_formula.xml
+++ b/web_widget_float_formula/views/web_widget_float_formula.xml
@@ -14,7 +14,7 @@
     </template>
 
     <template id="qunit_suite" name="web_widget_float_formula Test Assets" inherit_id="web.qunit_suite">
-        <xpath expr="//html/head" position="inside">
+        <xpath expr="//t[@t-set='head']" position="inside">
             <script type="text/javascript" src="/web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js"/>
         </xpath>
     </template>