diff --git a/target/u-boot/Makefile.in b/target/u-boot/Makefile.in
index fb1ba6c909..c29ee4522b 100644
--- a/target/u-boot/Makefile.in
+++ b/target/u-boot/Makefile.in
@@ -33,7 +33,7 @@ TARGET_UBOOT_ETHADDR:=$(strip $(subst ",, $(BR2_TARGET_UBOOT_ETHADDR)))
 
 # u-boot still uses arch=ppc for powerpc
 U_BOOT_ARCH=$(KERNEL_ARCH:powerpc=ppc)
-ifeq ($(UBOOT_BOARD_NAME),"")
+ifeq ($(UBOOT_BOARD_NAME),)
 UBOOT_BOARD_NAME:=$(strip $(subst ",,$(BR2_TARGET_UBOOT_BOARDNAME)))
 #"))
 endif