diff --git a/permission-store/Makefile.am.inc b/permission-store/Makefile.am.inc
index 72d2e73c..ec06f642 100644
--- a/permission-store/Makefile.am.inc
+++ b/permission-store/Makefile.am.inc
@@ -27,4 +27,4 @@ xdg_permission_store_SOURCES = \
 	$(NULL)
 
 xdg_permission_store_LDADD = $(BASE_LIBS) libflatpak-common.la
-xdg_permission_store_CFLAGS = $(BASE_CFLAGS) $(SOUP_CFLAGS) $(OSTREE_CFLAGS) $(GSYSTEM_CFLAGS)
+xdg_permission_store_CFLAGS = $(BASE_CFLAGS) $(SOUP_CFLAGS) $(OSTREE_CFLAGS) $(GSYSTEM_CFLAGS) -I$(srcdir)/permission-store -I$(builddir)/permission-store