diff --git a/bd_crack.sh b/bd_crack.sh
index 21ac0dc..d8934e5 100644
--- a/bd_crack.sh
+++ b/bd_crack.sh
@@ -25,7 +25,7 @@ if [ ${#1} -ne 40 ]; then # check da length of da hashie boi
     echo "First arguement should be the SHA1 hash, exactly 40 hex characters long. exiting"
 fi
 
-if [ ${#2} - ne 5 ]; then # maek sure da known chars are precisely 5 chars otherwise fail
+if [ ${#2} -ne 5 ]; then # maek sure da known chars are precisely 5 chars otherwise fail
     echo "Second argument should be exactly five characters! exiting"
     exit
 fi