diff --git a/win32/deluge.nsi b/win32/deluge.nsi
index 8f36c7e47..9efdafdb6 100644
--- a/win32/deluge.nsi
+++ b/win32/deluge.nsi
@@ -9,7 +9,7 @@
 ; Macros
 
     !macro get_url installer
-        !define ${installer}_URL "http://download.deluge-torrent.org/windows/deps/${{installer}}"
+        !define ${installer}_URL "http://download.deluge-torrent.org/windows/deps/${${installer}}"
     !macroend
 
     !macro download url filename