diff --git a/conf/nginx.conf b/conf/nginx.conf
index 9e32209..5dee3de 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,6 +1,6 @@
 # Directives from the Mattermost installation guide
 
-location ~ __PATH__/api/v[0-9]+/(users/)?websocket$ {
+location ~ ^__PATH__/api/v[0-9]+/(users/)?websocket$ {
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
     client_max_body_size 50M;