diff --git a/src/convert_cm_in_dm.c b/src/convert_cm_in_dm.c
index 4f0cf97..0db3d1a 100644
--- a/src/convert_cm_in_dm.c
+++ b/src/convert_cm_in_dm.c
@@ -1,7 +1,7 @@
 
 #include "convert_cm_in_dm.h"
 #include <stdio.h>
-
+//convert length for double
 double cm_to_dm(double cm) {
     return cm / 10.0;
 }