diff --git a/api.lua b/api.lua
index 360d7d0..4c07c86 100644
--- a/api.lua
+++ b/api.lua
@@ -58,7 +58,7 @@ end
 -- @return string with found items, if no items found returns boolean false
 function x_marketplace.store_find(string)
 	local found = ""
-	local str = normalize_nodename(string)
+	local str = x_marketplace.normalize_nodename(string)
 
 	if not str then
 		return false