diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index 4ddaa38ee0..306a6b3e38 100644
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -10,6 +10,7 @@ include $(INCLUDE_DIR)/prereq.mk
 include $(INCLUDE_DIR)/host.mk
 include $(INCLUDE_DIR)/host-build.mk
 
+SHELL:=sh
 PKG_NAME:=Build dependency