diff --git a/c/ABCD.c b/c/ABCD.c
index c2cd12a..ac1c91f 100644
--- a/c/ABCD.c
+++ b/c/ABCD.c
@@ -5,7 +5,7 @@ int main(void)
 {
     int speed = 200;
 
-    printf("speed = %d\n", speed);
+    printf("motor start speed = %d\n", speed);
 
     return 0;
 }
\ No newline at end of file