diff --git a/Dockerfile b/Dockerfile
index 64dda36..a873f68 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,7 +28,7 @@ EXPOSE 9000/tcp 22/tcp
 RUN docker-php-ext-install -j$(nproc) pdo_mysql pdo_pgsql ldap gettext
 
 # Enable phpredis
-RUN pecl install -o -f igbinary && y | pecl install -o -f redis && docker-php-ext-enable redis igbinary && rm -f /tmp/*
+RUN pecl install -o -f igbinary && y | pecl install -o -f redis && docker-php-ext-enable redis igbinary && rm -rf /tmp/*
 
 # Add composer
 RUN curl https://getcomposer.org/installer|php -- --install-dir=/usr/local/bin --filename=composer