diff --git a/SC3005.md b/SC3005.md
index c38f599..956753c 100644
--- a/SC3005.md
+++ b/SC3005.md
@@ -16,7 +16,7 @@ i=0
 while [ "$i" -lt 10 ]
 do 
   echo "$i"
-  : $(( i += 1 ))
+  i=$((i+1))
 done
 ```