diff --git a/include/ucore/tailq.h b/include/ucore/tailq.h
index 761259a..010fb8a 100644
--- a/include/ucore/tailq.h
+++ b/include/ucore/tailq.h
@@ -134,7 +134,7 @@ static UC_INLINE void uc_tailq_move_tail(struct TailQ *entry, struct TailQ *head
 
 //FIRST/NEXT/LAST/PREV macros similar to sys/queue.h 
 //Note that unlike the standard TAILQ, you have to check
-// == head instead of == NULL to determine if the tailq entry
+// != head instead of != NULL to determine if the tailq entry
 // exists
 
 #define UC_TAILQ_FIRST(head)\