diff --git a/board/gaisler/grsim_leon2/config.mk b/board/gaisler/grsim_leon2/config.mk
index 65eba1b..4d88691 100644
--- a/board/gaisler/grsim_leon2/config.mk
+++ b/board/gaisler/grsim_leon2/config.mk
@@ -26,9 +26,10 @@
 #
 
 # RUN U-BOOT FROM PROM
-TEXT_BASE = 0x00000000
+CONFIG_SYS_TEXT_BASE = 0x00000000
 
 # RUN U-BOOT FROM RAM
-#TEXT_BASE = 0x40000000
+#CONFIG_SYS_TEXT_BASE = 0x40000000
 
-PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)/board
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
+	-I$(TOPDIR)/board