diff --git a/React/Base/RCTJavaScriptLoader.m b/React/Base/RCTJavaScriptLoader.m
index 8ea430702..c4341844f 100755
--- a/React/Base/RCTJavaScriptLoader.m
+++ b/React/Base/RCTJavaScriptLoader.m
@@ -42,16 +42,13 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
   // Load local script file
   if (scriptURL.fileURL) {
     dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-      NSError *error = nil;
-      NSData *source = nil;
-
       // Load the first 4 bytes to check if the bundle is regular or RAM ("Random Access Modules" bundle).
       // The RAM bundle has a magic number in the 4 first bytes `(0xFB0BD1E5)`.
       // The benefit of RAM bundle over a regular bundle is that we can lazily inject
       // modules into JSC as they're required.
       FILE *bundle = fopen(scriptURL.path.UTF8String, "r");
       if (!bundle) {
-        onComplete(RCTErrorWithMessage([NSString stringWithFormat:@"Error opening bundle %@", scriptURL.path]), source, 0);
+        onComplete(RCTErrorWithMessage([NSString stringWithFormat:@"Error opening bundle %@", scriptURL.path]), nil, 0);
         return;
       }
 
@@ -59,12 +56,14 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
       size_t readResult = fread(&magicNumber, sizeof(magicNumber), 1, bundle);
       fclose(bundle);
       if (readResult != 1) {
-        onComplete(RCTErrorWithMessage(@"Error reading bundle"), source, 0);
+        onComplete(RCTErrorWithMessage(@"Error reading bundle"), nil, 0);
         return;
       }
 
       magicNumber = NSSwapLittleIntToHost(magicNumber);
 
+      NSError *error = nil;
+      NSData *source = nil;
       int64_t sourceLength = 0;
       if (magicNumber == RCTRAMBundleMagicNumber) {
         source = [NSData dataWithBytes:&magicNumber length:sizeof(magicNumber)];