diff --git a/src/__tests__/reducer.setSubmitSuceeded.spec.js b/src/__tests__/reducer.setSubmitSuceeded.spec.js
index 332f17aa4..2c90a4b80 100644
--- a/src/__tests__/reducer.setSubmitSuceeded.spec.js
+++ b/src/__tests__/reducer.setSubmitSuceeded.spec.js
@@ -31,7 +31,8 @@ const describeSetSubmitSucceeded = (reducer, expect, { fromJS }) => () => {
         foo: {
           doesnt: 'matter',
           should: 'change',
-          submitSucceeded: true
+          submitSucceeded: true,
+          submitting: true
         }
       })
   })
@@ -50,7 +51,8 @@ const describeSetSubmitSucceeded = (reducer, expect, { fromJS }) => () => {
         foo: {
           doesnt: 'matter',
           should: 'notchange',
-          submitSucceeded: true
+          submitSucceeded: true,
+          submitting: true
         }
       })
   })
diff --git a/src/__tests__/reduxForm.spec.js b/src/__tests__/reduxForm.spec.js
index 9fe80f591..fec885491 100644
--- a/src/__tests__/reduxForm.spec.js
+++ b/src/__tests__/reduxForm.spec.js
@@ -10,6 +10,7 @@ import createReducer from '../reducer'
 import createReduxForm from '../reduxForm'
 import createField from '../Field'
 import createFieldArray from '../FieldArray'
+import { startSubmit } from '../actions';
 import plain from '../structure/plain'
 import plainExpectations from '../structure/plain/expectations'
 import immutable from '../structure/immutable'
@@ -2746,6 +2747,111 @@ const describeReduxForm = (name, structure, combineReducers, expect) => {
       expect(inputRender.calls.length).toBe(3)
       expect(inputRender.calls[ 2 ].arguments[ 0 ].input.value).toBe('fooChanged')
     })
+    it('startSubmit in onSubmit promise', () => {
+      const store = makeStore({})
+      class Form extends Component {
+        render() {
+          const { handleSubmit } = this.props;
+          return (
+            <form onSubmit={handleSubmit}>
+              <Field name="foo" component="input" type="text"/>
+            </form>
+          )
+        }
+      }
+      const resolvedProm = Promise.resolve();
+      const Decorated = reduxForm({
+        form: 'testForm',
+        destroyOnUnmount: false,
+        onSubmit(data, dispatch) {
+          dispatch(startSubmit('testForm'));
+          
+          return resolvedProm;
+        }
+      })(Form)
+
+      const dom = TestUtils.renderIntoDocument(
+        <Provider store={store}>
+          <Decorated/>
+        </Provider>
+      );
+
+      // unmount form
+      const stub = TestUtils.findRenderedComponentWithType(dom, Decorated)
+      stub.submit()
+      
+      
+      return resolvedProm.then(() => {
+        // form state not destroyed (just fields unregistered)
+        expect(store.getState()).toEqualMap({
+          form: {
+            testForm: {
+              anyTouched: true,
+              fields: {
+                foo: {
+                  touched: true
+                }
+              },
+              registeredFields: [{
+                name: 'foo',
+                type: 'Field'
+              }],
+              submitSucceeded: true
+            }
+          }
+        })
+      })
+  })
+    it('startSubmit in onSubmit sync', () => {
+      const store = makeStore({})
+      class Form extends Component {
+        render() {
+          const { handleSubmit } = this.props
+          return (
+            <form onSubmit={handleSubmit}>
+              <Field name="foo" component="input" type="text"/>
+            </form>
+          )
+        }
+      }
+      const Decorated = reduxForm({
+        form: 'testForm',
+        destroyOnUnmount: false,
+        onSubmit(data, dispatch) {
+          dispatch(startSubmit('testForm'))
+        }
+      })(Form)
+  
+      const dom = TestUtils.renderIntoDocument(
+        <Provider store={store}>
+          <Decorated/>
+        </Provider>
+      )
+  
+      // unmount form
+      const stub = TestUtils.findRenderedComponentWithType(dom, Decorated)
+      stub.submit()
+  
+      // form state not destroyed (just fields unregistered)
+      expect(store.getState()).toEqualMap({
+        form: {
+          testForm: {
+            anyTouched: true,
+            fields: {
+              foo: {
+                touched: true
+              }
+            },
+            registeredFields: [{
+              name: 'foo',
+              type: 'Field'
+            }],
+            submitting: true,
+            submitSucceeded: true
+          }
+        }
+      })
+    })
   })
 }
 
diff --git a/src/reducer.js b/src/reducer.js
index d39a3a945..c6a12a4b0 100644
--- a/src/reducer.js
+++ b/src/reducer.js
@@ -298,7 +298,6 @@ const createReducer = structure => {
       let result = state
       result = deleteIn(result, 'submitFailed')
       result = setIn(result, 'submitSucceeded', true)
-      result = deleteIn(result, 'submitting')
       return result
     },
     [TOUCH](state, { meta: { fields } }) {