diff --git a/addons/web/static/src/js/framework/mixins.js b/addons/web/static/src/js/framework/mixins.js
index c80f486b92b..c79ae127fa5 100644
--- a/addons/web/static/src/js/framework/mixins.js
+++ b/addons/web/static/src/js/framework/mixins.js
@@ -325,9 +325,8 @@ var PropertiesMixin = _.extend({}, EventDispatcherMixin, {
             // remove this, or move it elsewhere.  Also, learn OO programming.
             if (key === 'value' && self.field && self.field.type === 'float' && tmp && val){
                 var digits = self.field.digits;
-                if (digits !== 0){
-                    digits = digits ? digits[1] : 2;
-                    if (utils.float_is_zero(tmp - val, digits)) {
+                if (_.isArray(digits)) {
+                    if (utils.float_is_zero(tmp - val, digits[1])) {
                         return;
                     }
                 }
@@ -355,4 +354,3 @@ return {
 };
 
 });
-