diff --git a/platform-darwin/Source/Mac/MPMacAppDelegate.m b/platform-darwin/Source/Mac/MPMacAppDelegate.m
index bbddc69a..4fd9f8d2 100644
--- a/platform-darwin/Source/Mac/MPMacAppDelegate.m
+++ b/platform-darwin/Source/Mac/MPMacAppDelegate.m
@@ -70,7 +70,7 @@ static OSStatus MPHotKeyHander(EventHandlerCallRef nextHandler, EventRef theEven
     @try {
         // Sentry
         [SentrySDK initWithOptions:@{
-                @"dsn"        : decrypt( sentryDSN ),
+                @"dsn"        : NilToNSNull( decrypt( sentryDSN ) ),
 #ifdef DEBUG
                 @"debug"      : @(YES),
                 @"environment": @"Development",
diff --git a/platform-darwin/Source/iOS/MPiOSAppDelegate.m b/platform-darwin/Source/iOS/MPiOSAppDelegate.m
index e6309441..4162849e 100644
--- a/platform-darwin/Source/iOS/MPiOSAppDelegate.m
+++ b/platform-darwin/Source/iOS/MPiOSAppDelegate.m
@@ -45,7 +45,7 @@
     @try {
         // Sentry
         [SentrySDK initWithOptions:@{
-                @"dsn"        : decrypt( sentryDSN ),
+                @"dsn"        : NilToNSNull( decrypt( sentryDSN ) ),
 #ifdef DEBUG
                 @"debug"      : @(YES),
                 @"environment": @"Development",