diff --git a/ios/RNFetchBlobNetwork.m b/ios/RNFetchBlobNetwork.m
index 7be57fc59..c2f6d1680 100644
--- a/ios/RNFetchBlobNetwork.m
+++ b/ios/RNFetchBlobNetwork.m
@@ -106,8 +106,12 @@ @implementation RNFetchBlobNetwork
 - (id)init {
     self = [super init];
     if(taskQueue == nil) {
-        taskQueue = [[NSOperationQueue alloc] init];
-        taskQueue.maxConcurrentOperationCount = 10;
+        @synchronized ([RNFetchBlobNetwork class]) {
+            if (taskQueue == nil) {
+                taskQueue = [[NSOperationQueue alloc] init];
+                taskQueue.maxConcurrentOperationCount = 10;
+            }
+        }
     }
     return self;
 }