diff --git a/target/s390x/cpu-param.h b/target/s390x/cpu-param.h
index bf951a002e..84ca08626b 100644
--- a/target/s390x/cpu-param.h
+++ b/target/s390x/cpu-param.h
@@ -12,6 +12,5 @@
 #define TARGET_PAGE_BITS 12
 #define TARGET_PHYS_ADDR_SPACE_BITS 64
 #define TARGET_VIRT_ADDR_SPACE_BITS 64
-#define NB_MMU_MODES 4
 
 #endif