diff --git a/.gitea/workflows/deploy.yaml b/.gitea/workflows/deploy.yaml
index e0feab3..e86a792 100644
--- a/.gitea/workflows/deploy.yaml
+++ b/.gitea/workflows/deploy.yaml
@@ -17,6 +17,10 @@ jobs:
         run: |
           docker build --pull -t akkolli-website:latest .
 
+      - name: Validate web server configuration
+        run: |
+          docker run --rm akkolli-website:latest nginx -t
+
       - name: Stop existing container
         run: |
           docker stop website-container || true
diff --git a/nginx.conf b/nginx.conf
index d7c3ee6..d5a02d0 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -22,7 +22,7 @@ server {
         text/plain
         text/xml;
 
-    location ~* \.[0-9a-f]{32,}\.(?:css|js)$ {
+    location ~* "\.[0-9a-f]{32,}\.(?:css|js)$" {
         try_files $uri =404;
         add_header Cache-Control "public, max-age=31536000, immutable" always;
     }