diff --git a/include/download.mk b/include/download.mk
index 372db03194..1c3f23e94b 100644
--- a/include/download.mk
+++ b/include/download.mk
@@ -88,7 +88,7 @@ define DownloadMethod/git
 		rm -rf $(SUBDIR) && \
 		[ \! -d $(SUBDIR) ] && \
 		git clone $(URL) $(SUBDIR) --recursive && \
-		(cd $(SUBDIR) && git checkout $(VERSION)) && \
+		(cd $(SUBDIR) && git checkout $(VERSION) && git submodule update) && \
 		echo "Packing checkout..." && \
 		rm -rf $(SUBDIR)/.git && \
 		$(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \