diff --git a/conf/nginx.conf b/conf/nginx.conf
index 69926a9..8cc846f 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -25,10 +25,10 @@ location __PATH__/ {
 
     # CORS
    	more_set_headers "Access-Control-Allow-Origin: '*'";
-  	more_set_headers "Access-Control-Max-Age 3600";
-  	more_set_headers "Access-Control-Expose-Headers Content-Length";
-  	more_set_headers "Access-Control-Allow-Headers Range";
-  	more_set_headers "Accept-Ranges bytes";
+  	more_set_headers "Access-Control-Max-Age: 3600";
+  	more_set_headers "Access-Control-Expose-Headers: Content-Length";
+  	more_set_headers "Access-Control-Allow-Headers: Range";
+  	more_set_headers "Accept-Ranges: bytes";
 
     # Include SSOWAT user panel.
     include conf.d/yunohost_panel.conf.inc;