diff --git a/calculator.c b/calculator.c
index 176f397..2f80ad3 100644
--- a/calculator.c
+++ b/calculator.c
@@ -7,6 +7,7 @@ void add(int a, int b)
 void sub(int a, int b)
 {
 	printf("a - b = %d\n", a - b);
+    printf("");
 }
 void mul()
 {