diff --git a/tools/builder/PkgCore.cs b/tools/builder/PkgCore.cs
index b118f7b1..447b7a01 100644
--- a/tools/builder/PkgCore.cs
+++ b/tools/builder/PkgCore.cs
@@ -258,7 +258,7 @@ namespace builder
 			libraries.Add(lib);
 
 			lib = new Library();
-			lib.package_path = "addons/sourcemod/extension";
+			lib.package_path = "addons/sourcemod/extensions";
 			lib.source_path = "extensions/sdktools";
 			lib.binary_name = "sdktools.ext.1.ep1";
 			lib.vcproj_name = "sdktools";