diff --git a/target/rx/cpu-param.h b/target/rx/cpu-param.h
index b156ad1ca0..521d669bdf 100644
--- a/target/rx/cpu-param.h
+++ b/target/rx/cpu-param.h
@@ -25,6 +25,4 @@
 #define TARGET_PHYS_ADDR_SPACE_BITS 32
 #define TARGET_VIRT_ADDR_SPACE_BITS 32
 
-#define NB_MMU_MODES 1
-
 #endif