diff --git a/app/switch/resources/scripts/call_forward.lua b/app/switch/resources/scripts/call_forward.lua
index a4eea279f8..b3099ff4bd 100644
--- a/app/switch/resources/scripts/call_forward.lua
+++ b/app/switch/resources/scripts/call_forward.lua
@@ -310,7 +310,7 @@
 	if extension and #extension > 0 and cache.support() then
 		cache.del(hostname..":directory:"..extension.."@"..domain_name);
 		if #number_alias > 0 then
-			cache.del(hostname.."directory:"..number_alias.."@"..domain_name);
+			cache.del(hostname..":directory:"..number_alias.."@"..domain_name);
 		end
 	end