diff --git a/docs/tutorial.md b/docs/tutorial.md
index afe950f4ac3..906d37d1075 100644
--- a/docs/tutorial.md
+++ b/docs/tutorial.md
@@ -163,7 +163,7 @@ const styles = StyleSheet.create({
     alignItems: 'center',
     backgroundColor: '#DDDDDD',
     padding: 10,
-    marginBottom: '10'
+    marginBottom: 10
   }
 })
 
diff --git a/website/versioned_docs/version-0.62/tutorial.md b/website/versioned_docs/version-0.62/tutorial.md
index 3f70be8a753..896c0262462 100644
--- a/website/versioned_docs/version-0.62/tutorial.md
+++ b/website/versioned_docs/version-0.62/tutorial.md
@@ -164,7 +164,7 @@ const styles = StyleSheet.create({
     alignItems: 'center',
     backgroundColor: '#DDDDDD',
     padding: 10,
-    marginBottom: '10'
+    marginBottom: 10
   }
 })