diff --git a/js/src/Makefile.in b/js/src/Makefile.in
index 1d5891bcc9c9..5c12ac2990eb 100644
--- a/js/src/Makefile.in
+++ b/js/src/Makefile.in
@@ -311,7 +311,7 @@ install:: $(LIBRARY_NAME).pc
 #
 
 install::
-	$(call py_action,process_install_manifest,--no-remove $(DESTDIR)$(includedir)/$(LIBRARY_NAME) _build_manifests/install/dist_include)
+	$(call py_action,process_install_manifest,--no-remove $(DESTDIR)$(includedir)/$(LIBRARY_NAME) $(DEPTH)/_build_manifests/install/dist_include)
 
 #
 # END SpiderMonkey header installation