diff --git a/application/basilisk/installer/windows/nsis/uninstaller.nsi b/application/basilisk/installer/windows/nsis/uninstaller.nsi
index c556b0a900..7f577d27f3 100644
--- a/application/basilisk/installer/windows/nsis/uninstaller.nsi
+++ b/application/basilisk/installer/windows/nsis/uninstaller.nsi
@@ -40,7 +40,6 @@ RequestExecutionLevel user
  "Software\Microsoft\Windows\CurrentVersion\Uninstall\MozillaMaintenanceService"
 
 Var TmpVal
-Var MaintCertKey
 
 ; Other included files may depend upon these includes!
 ; The following includes are provided by NSIS.