diff --git a/src/ios/FirebasePlugin.m b/src/ios/FirebasePlugin.m
index 83a4dd816..88f9c8dac 100644
--- a/src/ios/FirebasePlugin.m
+++ b/src/ios/FirebasePlugin.m
@@ -1640,7 +1640,8 @@ - (void)_logMessage: (NSString*)msg
 
 - (NSString*)escapeJavascriptString: (NSString*)str
 {
-    NSString* result = [str stringByReplacingOccurrencesOfString: @"\"" withString: @"\\\""];
+    NSString* result = [str stringByReplacingOccurrencesOfString: @"\\\"" withString: @"\""];
+    result = [result stringByReplacingOccurrencesOfString: @"\"" withString: @"\\\""];
     result = [result stringByReplacingOccurrencesOfString: @"\n" withString: @"\\\n"];
     return result;
 }