diff --git a/packages/react-navigation/flow/react-navigation.js b/packages/react-navigation/flow/react-navigation.js
index e47bfea8..27a666dc 100644
--- a/packages/react-navigation/flow/react-navigation.js
+++ b/packages/react-navigation/flow/react-navigation.js
@@ -878,7 +878,7 @@ declare module 'react-navigation' {
       vertical?: _SafeAreaViewForceInsetValue,
       horizontal?: _SafeAreaViewForceInsetValue,
     },
-    children: React$Node,
+    children?: React$Node,
     style?: AnimatedViewStyleProp,
   };
   declare export var SafeAreaView: React$ComponentType<_SafeAreaViewProps>;