diff --git a/browser/installer/windows/Makefile.in b/browser/installer/windows/Makefile.in
index 1ab625666690..3a147de034a8 100644
--- a/browser/installer/windows/Makefile.in
+++ b/browser/installer/windows/Makefile.in
@@ -144,8 +144,10 @@ $(CONFIG_DIR)/setup.exe::
 	for i in $(PP_LOCALIZED_FILES); do \
 	  $(PERL) $(topsrcdir)/config/preprocessor.pl $(DEFINES) $(ACDEFINES) $(srcdir)/$$i > $(CONFIG_DIR)/$$i; \
 	done
+ifeq ($(CONFIG_DIR),instgen)
 	$(PERL) $(topsrcdir)/toolkit/mozapps/installer/windows/nsis/make-installremoves.pl \
 	  ../removed-files > $(CONFIG_DIR)/removed-files.log
+endif
 	$(PERL) $(topsrcdir)/config/preprocessor.pl -Fsubstitution $(DEFINES) $(ACDEFINES) \
 	  $(srcdir)/nsis/defines.nsi.in | iconv -f UTF-8 -t UTF-16LE | \
 	  cat $(MOZILLA_DIR)/toolkit/mozapps/installer/windows/nsis/utf16-le-bom.bin - > \