diff --git a/drivers/mux/Makefile b/drivers/mux/Makefile
index d4e2478..63770e1 100644
--- a/drivers/mux/Makefile
+++ b/drivers/mux/Makefile
@@ -4,4 +4,4 @@
 # Jean-Jacques Hiblot <jjhiblot@ti.com>
 
 obj-$(CONFIG_MULTIPLEXER) += mux-uclass.o
-obj-$(CONFIG_$(SPL_)MUX_MMIO) += mmio.o
+obj-$(CONFIG_$(XPL_)MUX_MMIO) += mmio.o