diff --git a/report_card.c b/report_card.c
index 8c1597f..e3199de 100644
--- a/report_card.c
+++ b/report_card.c
@@ -3,7 +3,7 @@
 int main()
 {
 	int kor, eng, math;
-	int sum = 0;
+	int average = 0;
 
 	math = 80;
 	eng = 100;