diff --git a/docker-start.sh b/docker-start.sh
index e8b6bc3..e52b8a2 100755
--- a/docker-start.sh
+++ b/docker-start.sh
@@ -79,7 +79,7 @@ if [[ -n $RVC_VOICES ]]; then
   DOCKER_ARGS+=( -v ${RVC_VOICES}:${ALLTALK_DIR}/models/rvc_voices )
 fi
 
-if [ "ALLTALK_GRADIO_INTERFACE" = true ] ; then
+if [ "$ALLTALK_GRADIO_INTERFACE" = true ] ; then
     if [ "$ALLTALK_ENABLE_MULTI_ENGINE_MANAGER" = true ] ; then
       DOCKER_ARGS+=( -p 7500:7500 )
     else