diff --git a/pkg/oonf_api/0001-add-RIOT-support.patch b/pkg/oonf_api/0001-add-RIOT-support.patch
index 971a8a24a..bbfe37dc7 100644
--- a/pkg/oonf_api/0001-add-RIOT-support.patch
+++ b/pkg/oonf_api/0001-add-RIOT-support.patch
@@ -54,7 +54,7 @@ index 0000000..cf66baa
 +
 +all:
 +	mkdir -p $(BINDIR)
-+	@for i in $(DIRS) ; do $(MAKE) -C $$i ; done ;
++	@for i in $(DIRS) ; do $(MAKE) -C $$i || exit 1; done ;
 +
 +clean:
 diff --git a/external/regex/Makefile b/external/regex/Makefile