diff --git a/OpenVPN Adapter/OpenVPNPacketFlowBridge.h b/OpenVPN Adapter/OpenVPNPacketFlowBridge.h
index e025354..7f77b42 100644
--- a/OpenVPN Adapter/OpenVPNPacketFlowBridge.h	
+++ b/OpenVPN Adapter/OpenVPNPacketFlowBridge.h	
@@ -18,7 +18,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) CFSocketRef packetFlowSocket;
 
 - (instancetype)init NS_UNAVAILABLE;
-- (nullable instancetype)initWithPacketFlow:(id<OpenVPNAdapterPacketFlow>)packetFlow NS_DESIGNATED_INITIALIZER;
+- (instancetype)initWithPacketFlow:(id<OpenVPNAdapterPacketFlow>)packetFlow NS_DESIGNATED_INITIALIZER;
 
 - (BOOL)configureSocketsWithError:(NSError **)error;
 - (void)startReading;
diff --git a/OpenVPN Adapter/OpenVPNPacketFlowBridge.mm b/OpenVPN Adapter/OpenVPNPacketFlowBridge.mm
index a92dc3b..4c0cc9b 100644
--- a/OpenVPN Adapter/OpenVPNPacketFlowBridge.mm	
+++ b/OpenVPN Adapter/OpenVPNPacketFlowBridge.mm	
@@ -52,7 +52,7 @@ static void SocketCallback(CFSocketRef socket, CFSocketCallBackType type, CFData
             };
             
             *error = [NSError errorWithDomain:OpenVPNAdapterErrorDomain
-                                         code:OpenVPNAdapterErrorTUNSetupFailed
+                                         code:OpenVPNAdapterErrorSocketSetupFailed
                                      userInfo:userInfo];
         }
         
@@ -73,7 +73,7 @@ static void SocketCallback(CFSocketRef socket, CFSocketCallBackType type, CFData
             };
             
             *error = [NSError errorWithDomain:OpenVPNAdapterErrorDomain
-                                         code:OpenVPNAdapterErrorTUNSetupFailed
+                                         code:OpenVPNAdapterErrorSocketSetupFailed
                                      userInfo:userInfo];
         }
 
@@ -105,7 +105,7 @@ static void SocketCallback(CFSocketRef socket, CFSocketCallBackType type, CFData
             };
             
             *error = [NSError errorWithDomain:OpenVPNAdapterErrorDomain
-                                         code:OpenVPNAdapterErrorTUNSetupFailed
+                                         code:OpenVPNAdapterErrorSocketSetupFailed
                                      userInfo:userInfo];
         }
         
@@ -121,7 +121,7 @@ static void SocketCallback(CFSocketRef socket, CFSocketCallBackType type, CFData
             };
             
             *error = [NSError errorWithDomain:OpenVPNAdapterErrorDomain
-                                         code:OpenVPNAdapterErrorTUNSetupFailed
+                                         code:OpenVPNAdapterErrorSocketSetupFailed
                                      userInfo:userInfo];
         }