diff --git a/src/collections/Form/Form.js b/src/collections/Form/Form.js
index 7739df0bc1..03ab8055d1 100644
--- a/src/collections/Form/Form.js
+++ b/src/collections/Form/Form.js
@@ -102,7 +102,7 @@ class Form extends Component {
 
     // Heads up! Third party libs can pass own data as first argument, we need to check that it has preventDefault()
     // method.
-    if (!action) _.invoke(e, 'preventDefault')
+    if (typeof action !== 'string') _.invoke(e, 'preventDefault')
     _.invoke(this.props, 'onSubmit', e, this.props, ...args)
   }
 
diff --git a/test/specs/collections/Form/Form-test.js b/test/specs/collections/Form/Form-test.js
index 66efebbe54..b82099f135 100644
--- a/test/specs/collections/Form/Form-test.js
+++ b/test/specs/collections/Form/Form-test.js
@@ -67,7 +67,13 @@ describe('Form', () => {
       shallow(<Form />)
         .simulate('submit', event)
 
-      event.preventDefault.should.have.been.calledOnce()
+      shallow(<Form action={false} />)
+        .simulate('submit', event)
+
+      shallow(<Form action={null} />)
+        .simulate('submit', event)
+
+      event.preventDefault.should.have.been.calledThrice()
     })
 
     it('does not prevent default on the event when there is an action', () => {
@@ -76,6 +82,9 @@ describe('Form', () => {
       shallow(<Form action='do not prevent default!' />)
         .simulate('submit', event)
 
+      shallow(<Form action='' />)
+        .simulate('submit', event)
+
       event.preventDefault.should.not.have.been.called()
     })