diff --git a/autobuild.sh b/autobuild.sh
index b2eb94d..ec7ad12 100755
--- a/autobuild.sh
+++ b/autobuild.sh
@@ -143,7 +143,7 @@ case "$1" in
          print_help
          exit 2;
       else
-        if [ "$2" =~ "$regex"  ] ||  [ -z "$2" ]; then
+        if [ "echo $2 | grep $regex >/dev/null 2>&1" ] ||  [ -z "$2" ]; then
           echo "! -- Error: Invalid input. Try again."
           exit 2;
         elif [ ! -d "$2" ]; then
@@ -169,7 +169,7 @@ case "$1" in
 esac
 # Really needed Type Checks
 
-while [ "$input" =~ "$regex" ] ||  [ -z "$input" ] ; do
+while [ "echo $input | grep $regex >/dev/null 2>&1" ]  ||  [ -z "$input" ] ; do
   echo "! -- Error: Invalid input. Try again."
   read -p  "Enter your mod's Location (use . if you have this script inside your mod folder): " input
 done