diff --git a/poky/meta/recipes-bsp/grub/grub2.inc b/poky/meta/recipes-bsp/grub/grub2.inc
index 7d8c280..bac2d7d 100644
--- a/poky/meta/recipes-bsp/grub/grub2.inc
+++ b/poky/meta/recipes-bsp/grub/grub2.inc
@@ -60,7 +60,7 @@
 BUILD_CXXFLAGS = ""
 BUILD_LDFLAGS = ""
 
-CFLAGS_append = "-Wno-error"
+CFLAGS_append = " -Wno-error"
 
 do_configure_prepend() {
 	# The grub2 configure script uses variables such as TARGET_CFLAGS etc