diff --git a/types/redux-form/lib/Field.d.ts b/types/redux-form/lib/Field.d.ts
index 8c75977f6c..3409c47842 100644
--- a/types/redux-form/lib/Field.d.ts
+++ b/types/redux-form/lib/Field.d.ts
@@ -185,7 +185,10 @@ interface WrappedFieldProps<S> {
 /**
  * These props are meant to be destructured into your <input/> component.
  */
-type EventOrValueHandler<Event> = (eventOrValue: Event | FieldValue, newValue: FieldValue, previousValue: FieldValue) => void;
+interface EventOrValueHandler<Event> {
+    (event: Event): void;
+    (value: FieldValue, newValue: FieldValue, previousValue: FieldValue): void;
+}
 
 interface WrappedFieldInputProps {
     /**
diff --git a/types/redux-form/lib/reduxForm.d.ts b/types/redux-form/lib/reduxForm.d.ts
index e4429015e1..0912233154 100644
--- a/types/redux-form/lib/reduxForm.d.ts
+++ b/types/redux-form/lib/reduxForm.d.ts
@@ -34,7 +34,7 @@ export interface Config<FormData extends DataShape, P, S> {
      * the name of your form and the key to where your form's state will be
      * mounted under the redux-form reducer
      */
-    form: string;
+    form?: string;
 
     /**
      * field names for which onBlur should trigger a call to the asyncValidate