diff --git a/minecraft-server/start-finalSetup05EnvVariables b/minecraft-server/start-finalSetup05EnvVariables
index b209034e..7146955a 100644
--- a/minecraft-server/start-finalSetup05EnvVariables
+++ b/minecraft-server/start-finalSetup05EnvVariables
@@ -5,7 +5,7 @@ if [ "$REPLACE_ENV_VARIABLES" = "TRUE" ]; then
   while IFS='=' read -r name value ; do
     # check if name of env variable matches the prefix
     # sanity check environment variables to avoid code injections
-    if [[ "$name" = $ENV_VARIABLE_PREFIX* ]] && [[ $value =~ ^[0-9a-zA-Z_\-:/=?.+]*$ ]] && [[ $name =~ ^[0-9a-zA-Z_\-]*$ ]]; then
+    if [[ "$name" = $ENV_VARIABLE_PREFIX* ]] && [[ $value =~ ^[0-9a-zA-Z_:/=?.+\-]*$ ]] && [[ $name =~ ^[0-9a-zA-Z_\-]*$ ]]; then
         echo "$name = $value"
         find /data/ -type f -exec sed -i 's#${'"$name"'}#'"$value"'#g' {} \;
     fi