diff --git a/docs/react-native.md b/docs/react-native.md
index a0358c0621..a0244e279f 100644
--- a/docs/react-native.md
+++ b/docs/react-native.md
@@ -20,7 +20,7 @@ import { onlineManager } from 'react-query'
 
 onlineManager.setEventListener(setOnline => {
   return NetInfo.addEventListener(state => {
-    setOnline(state.isConnected)
+    setOnline(!!state.isConnected)
   })
 })
 ```
diff --git a/docs/reference/onlineManager.md b/docs/reference/onlineManager.md
index 86caef9b3b..2e19b35e35 100644
--- a/docs/reference/onlineManager.md
+++ b/docs/reference/onlineManager.md
@@ -23,7 +23,7 @@ import { onlineManager } from 'react-query'
 
 onlineManager.setEventListener(setOnline => {
   return NetInfo.addEventListener(state => {
-    setOnline(state.isConnected)
+    setOnline(!!state.isConnected)
   })
 })
 ```