diff --git a/Containers/nextcloud/Dockerfile b/Containers/nextcloud/Dockerfile
index 9dbf8460..2573fb24 100644
--- a/Containers/nextcloud/Dockerfile
+++ b/Containers/nextcloud/Dockerfile
@@ -264,7 +264,7 @@ RUN set -ex; \
 # never reaped.  Over time these zombies fill up pm.max_children, leaving no
 # free slots for legitimate requests and causing Apache to return 502 Bad
 # Gateway upstream.
-    sed -i 's|^;*request_terminate_timeout = .*|request_terminate_timeout = ${PHP_MAX_TIME}|' /usr/local/etc/php-fpm.d/www.conf; \
+    sed -i "s|^;*request_terminate_timeout = .*|request_terminate_timeout = \${PHP_MAX_TIME}|" /usr/local/etc/php-fpm.d/www.conf; \
     sed -i 's|access.log = /proc/self/fd/2|access.log = /proc/self/fd/1|' /usr/local/etc/php-fpm.d/docker.conf; \
     \
     echo "[ -n \"\$TERM\" ] && [ -f /root.motd ] && cat /root.motd" >> /root/.bashrc; \