diff --git a/Sources/api_database/Dockerfile b/Sources/api_database/Dockerfile
index ec3d9ac..ea7dcb4 100644
--- a/Sources/api_database/Dockerfile
+++ b/Sources/api_database/Dockerfile
@@ -6,5 +6,6 @@ RUN docker-php-ext-install pdo_mysql
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
 COPY . /usr/src/daflmusic
 WORKDIR /usr/src/daflmusic
+RUN ls
 RUN php /usr/local/bin/composer require slim/slim:3.*
 CMD [ "php", "./public/index.php" ]
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