diff --git a/mozilla/modules/libjar/standalone/makefile.win b/mozilla/modules/libjar/standalone/makefile.win
index 5d2c7a8fb83..6ca8992226c 100644
--- a/mozilla/modules/libjar/standalone/makefile.win
+++ b/mozilla/modules/libjar/standalone/makefile.win
@@ -55,6 +55,9 @@ export::
 install:: $(LIBRARY)
     $(MAKE_INSTALL) .\$(OBJDIR)\jar_s.lib $(DIST)\lib
 
+depend::
+  $(RM) *.h
+
 clobber::
   $(RM) nsZipArchive.cpp