diff --git a/entrypoint.sh b/entrypoint.sh
index 3bcdad1..a298cf2 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -7,14 +7,6 @@ convertCase () {
     printf "%s" "$1" | tr "[:lower:]" "[:upper:]"
 }
 
-testInteger () {
-    if ! [ "$1" -eq "$1" ] 2>/dev/null; then
-        return 0
-    else
-        return "$1"
-    fi
-}
-
 # instantiate variables
 sqlCmd='/tmp/cmd.sql'
 
@@ -22,17 +14,18 @@ sqlCmd='/tmp/cmd.sql'
 MYSQL_SKIP_NAME_RESOLVE=$(convertCase "$MYSQL_SKIP_NAME_RESOLVE")
 
 # verify environment variables have valid values
-if [ "$(testInteger $MYSQL_UID)" -gt 0 ]; then
-    printf "Setting mysql UID to %s\n" "$MYSQL_UID"
-else
+if ! [ "$MYSQL_UID" -eq "$MYSQL_UID" ]; then
     printf "'%s' is not a valid value for MYSQL_UID\n" "$MYSQL_UID"
     exit 1
-fi
-if [ "$(testInteger $MYSQL_GID)" -gt 0 ]; then
-    printf "Setting mysql GID to %s\n" "$MYSQL_GID"
 else
+    printf "Setting mysql UID to %s\n" "$MYSQL_UID"
+fi
+if ! [ $MYSQL_GID -eq "$MYSQL_UID" ]; then
     printf "'%s' is not a valid value for MYSQL_GID\n" "$MYSQL_UID"
     exit 1
+else
+    printf "Setting mysql GID to %s\n" "$MYSQL_GID"
+
 fi
 if [ "$MYSQL_SKIP_NAME_RESOLVE" != "TRUE" ] && [ "$MYSQL_SKIP_NAME_RESOLVE" != "FALSE" ]; then
     printf "MYSQL_SKIP_NAME_RESOLVE must be either 'TRUE' or 'FALSE'\n"