diff --git a/src/sys/kernel/schedule.c b/src/sys/kernel/schedule.c
index 9cae3d0..7dc1322 100755
--- a/src/sys/kernel/schedule.c
+++ b/src/sys/kernel/schedule.c
@@ -84,7 +84,7 @@
       return(&taskList[i]);
       }
     }
-  return(-1);
+  return(NULL);
   }
 
 void schedule() {