diff --git a/docker/nginx/conf.d/client.conf b/docker/nginx/conf.d/client.conf
index 4212a813..23d08364 100644
--- a/docker/nginx/conf.d/client.conf
+++ b/docker/nginx/conf.d/client.conf
@@ -474,6 +474,8 @@ server {
 				end
 				ngx.header["Skynet-Skylink"] = ngx.var.skylink_v2
 			end
+
+			ngx.header["Cache-Key"] = ngx.var.skylink_v1 .. "+++" .. ngx.var.path .. "+++" .. ngx.var.arg_format .. "+++" .. ngx.var.arg_attachment .. "+++" .. ngx.var.slice_range
 		}
 
 		# register the download in accounts service (cookies should contain jwt)