diff --git a/src/d_clisrv.c b/src/d_clisrv.c
index 9f65fdf8..764fbcbe 100644
--- a/src/d_clisrv.c
+++ b/src/d_clisrv.c
@@ -2076,8 +2076,8 @@ static boolean CL_ServerConnectionTicker(boolean viams, const char *tmpsave, tic
 
 		I_OsPolling();
 		key = I_GetKey();
-		// Any key can be used to abort network connection
-		if (key != KEY_NULL) 
+		// Only ESC and non-keyboard keys abort connection
+		if (key == KEY_ESCAPE || key >= KEY_MOUSE1) 
 		{
 			CONS_Printf(M_GetText("Network game synchronization aborted.\n"));
 //				M_StartMessage(M_GetText("Network game synchronization aborted.\n\nPress ESC\n"), NULL, MM_NOTHING);