diff --git a/Source/Installer/Installer.iss b/Source/Installer/Installer.iss
index 301119f94..02b4748e7 100644
--- a/Source/Installer/Installer.iss
+++ b/Source/Installer/Installer.iss
@@ -4,6 +4,7 @@
 #include BaseDir+"\Source\Installer\binno\binno.iss"
 
 [Setup]
+AppId={{BEB5FB69-4080-466F-96C4-F15DF271718B}
 AppName=Project 64
 AppVersion={#AppVersion}
 DefaultDirName={pf}\Project64 2.2