Add cryptoapiref to .PHONY
@@ -35,7 +35,7 @@ BUILDDIR = build
help:
@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-.PHONY: help html apiref
+.PHONY: help html apiref cryptoapiref
apiref: mkapiref.py \
$(top_builddir)/lib/includes/ngtcp2/version.h \
