diff --git a/mParticle-Apple-SDK/Kits/MPKitContainer.mm b/mParticle-Apple-SDK/Kits/MPKitContainer.mm
index 9f6d42e6..37364fc8 100644
--- a/mParticle-Apple-SDK/Kits/MPKitContainer.mm
+++ b/mParticle-Apple-SDK/Kits/MPKitContainer.mm
@@ -517,7 +517,13 @@ - (void)startKitRegister:(nonnull id<MPExtensionKitProtocol>)kitRegister configu
         }
         
         if ([kitRegister.wrapperInstance respondsToSelector:@selector(didFinishLaunchingWithConfiguration:)]) {
-            [kitRegister.wrapperInstance didFinishLaunchingWithConfiguration:configuration];
+            if ([NSThread isMainThread]) {
+                [kitRegister.wrapperInstance didFinishLaunchingWithConfiguration:configuration];
+            } else {
+                dispatch_async(dispatch_get_main_queue(), ^{
+                    [kitRegister.wrapperInstance didFinishLaunchingWithConfiguration:configuration];
+                });
+            }
         }
     }
 }
diff --git a/mParticle-Apple-SDK/MPBackendController.m b/mParticle-Apple-SDK/MPBackendController.m
index 057b7c91..c5355689 100644
--- a/mParticle-Apple-SDK/MPBackendController.m
+++ b/mParticle-Apple-SDK/MPBackendController.m
@@ -1474,7 +1474,7 @@ - (void)startWithKey:(NSString *)apiKey secret:(NSString *)secret networkOptions
     }
     
     if (![MParticle sharedInstance].stateMachine.optOut) {
-        dispatch_async(dispatch_get_main_queue(), ^{
+        dispatch_async([MParticle messageQueue], ^{
             [[MParticle sharedInstance].kitContainer initializeKits];
         });
     }