diff --git a/target/avr/cpu-param.h b/target/avr/cpu-param.h
index 7ef4e7c679..9a92bc74fc 100644
--- a/target/avr/cpu-param.h
+++ b/target/avr/cpu-param.h
@@ -31,6 +31,5 @@
 #define TARGET_PAGE_BITS 8
 #define TARGET_PHYS_ADDR_SPACE_BITS 24
 #define TARGET_VIRT_ADDR_SPACE_BITS 24
-#define NB_MMU_MODES 2
 
 #endif