1 files changed, 1 insertions, 1 deletions
diff --git a/py/py.mk b/py/py.mk
index a821b7c08b..097516952c 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -123,7 +123,7 @@ PY_O = $(addprefix $(PY_BUILD)/, $(PY_O_BASENAME))
 FORCE:
 .PHONY: FORCE
 
-$(HEADER_BUILD)/py-version.h: FORCE
+$(HEADER_BUILD)/py-version.h: FORCE | $(HEADER_BUILD)
 	$(Q)$(PY_SRC)/py-version.sh > $@.tmp
 	$(Q)if [ -f "$@" ] && cmp -s $@ $@.tmp; then rm $@.tmp; else echo "Generating $@"; mv $@.tmp $@; fi