diff --git a/devcontainers/php/.devcontainer/Dockerfile b/devcontainers/php/.devcontainer/Dockerfile
index 74ad509..99b67aa 100644
--- a/devcontainers/php/.devcontainer/Dockerfile
+++ b/devcontainers/php/.devcontainer/Dockerfile
@@ -3,6 +3,7 @@ FROM ghcr.io/mooncellwiki/php:latest
 ADD https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/
 
 RUN mv /usr/local/etc/php/conf.d/php.ini /usr/local/etc/php/conf.d/php.ini2
-RUN install-php-extensions \
+RUN chmod +x /usr/local/bin/install-php-extensions && \
+    install-php-extensions \
     xdebug
 RUN mv /usr/local/etc/php/conf.d/php.ini2 /usr/local/etc/php/conf.d/php.ini
\ No newline at end of file