diff --git a/utils/flashrom/Makefile b/utils/flashrom/Makefile
index af7b5e1dd..6d3c573a4 100644
--- a/utils/flashrom/Makefile
+++ b/utils/flashrom/Makefile
@@ -46,6 +46,8 @@ define Package/flashrom/description
  /firmware images.
 endef
 
+TARGET_CFLAGS+=-std=gnu89
+
 MAKE_FLAGS += \
 	PREFIX="/usr"