diff --git a/source/libtun/tunctl.c b/source/libtun/tunctl.c
index e2b7093..7311ebd 100644
--- a/source/libtun/tunctl.c
+++ b/source/libtun/tunctl.c
@@ -35,9 +35,13 @@ int createTun(char* interfaceName, int iffFlags)
     strcpy(interfaceReqData.ifr_name, interfaceName);
 
     /* Attempt to bring up the tun device node */
-    tunFD = ioctl(tunFD, TUNSETIFF, &interfaceReqData);
-
+    int tunStatus = ioctl(tunFD, TUNSETIFF, &interfaceReqData);
 
+    if(tunStatus < 0)
+    {
+        tunFD =  tunStatus;
+    }
+    
     return tunFD;
 }