diff --git a/embedding/browser/activex/src/control_kicker/makefile.win b/embedding/browser/activex/src/control_kicker/makefile.win
index 58ab99c22966..6a131abf68f3 100644
--- a/embedding/browser/activex/src/control_kicker/makefile.win
+++ b/embedding/browser/activex/src/control_kicker/makefile.win
@@ -59,9 +59,9 @@ PATH=$(DIST)\bin;$(PATH)
 
 install:: $(DLL)
     $(MAKE_INSTALL) $(DLL) $(DIST)\bin
-!ifndef MOZ_NO_ACTIVEX_REGISTRATION
+!ifdef MOZ_ACTIVEX_REGISTRATION
 !if "$(WINOS)" != "WIN95"
-    regsvr32 /s /c $(DIST)\bin\$(DLLNAME).dll
+    -regsvr32 /s /c $(DIST)\bin\$(DLLNAME).dll
 !endif
 !endif