diff --git a/types/react-native-material-ui/index.d.ts b/types/react-native-material-ui/index.d.ts
index f3147eecf7..d8560653d7 100644
--- a/types/react-native-material-ui/index.d.ts
+++ b/types/react-native-material-ui/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for react-native-material-ui 1.12
+// Type definitions for react-native-material-ui 1.19
 // Project: https://github.com/xotahal/react-native-material-ui
 // Definitions by: Kyle Roach <https://github.com/iRoachie>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -18,6 +18,7 @@ export interface ActionButtonProps {
     style?: {
         container?: ViewStyle
         icon?: TextStyle
+        positionContainer?: ViewStyle
     };
     transition?: 'toolbar' | 'speedDial';
     onPress?(): void;
diff --git a/types/react-native-material-ui/react-native-material-ui-tests.tsx b/types/react-native-material-ui/react-native-material-ui-tests.tsx
index 4acb9db12e..b4380fc388 100644
--- a/types/react-native-material-ui/react-native-material-ui-tests.tsx
+++ b/types/react-native-material-ui/react-native-material-ui-tests.tsx
@@ -25,7 +25,7 @@ const theme = {
 const Example = () =>
     <ThemeProvider uiTheme={theme}>
         <View>
-            <ActionButton />
+            <ActionButton style={{ positionContainer: { marginBottom: 3 }}} />
             <ActionButton icon="done" />
 
             <Avatar text="A" />