diff --git a/src/conio/ciolib.c b/src/conio/ciolib.c
index b7e5bdcda5556e64d774802971666dff43c49d92..ac5541f8ebaed4e0a5f57122264e1946b3cf36b5 100644
--- a/src/conio/ciolib.c
+++ b/src/conio/ciolib.c
@@ -544,7 +544,7 @@ void ciolib_wscroll(void)
 
 	CIOLIB_INIT();
 
-	if(cio_api.wscroll==NULL) {
+	if(cio_api.wscroll!=NULL) {
 		cio_api.wscroll();
 		return;
 	}