diff --git a/lib/Makefile b/lib/Makefile
index a3b2ee74..9a3cc009 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -208,7 +208,7 @@ else
 endif
 
 SET_CACHE_DIRECTORY = \
-	$(MAKE) --no-print-directory $@ \
+   +$(MAKE) --no-print-directory $@ \
     BUILD_DIR=obj/$(HASH_DIR) \
     CPPFLAGS="$(CPPFLAGS)" \
     CFLAGS="$(CFLAGS)" \
diff --git a/programs/Makefile b/programs/Makefile
index 3eb658f4..b254549b 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -194,7 +194,7 @@ endif
 endif
 
 SET_CACHE_DIRECTORY = \
-	$(MAKE) --no-print-directory $@ \
+   +$(MAKE) --no-print-directory $@ \
     BUILD_DIR=obj/$(HASH_DIR) \
     CPPFLAGS="$(CPPFLAGS)" \
     CFLAGS="$(CFLAGS)" \