diff --git a/target/ppc/cpu-param.h b/target/ppc/cpu-param.h
index ea377b7d06..0a0416e0a8 100644
--- a/target/ppc/cpu-param.h
+++ b/target/ppc/cpu-param.h
@@ -32,6 +32,5 @@
 # define TARGET_VIRT_ADDR_SPACE_BITS 32
 #endif
 #define TARGET_PAGE_BITS 12
-#define NB_MMU_MODES 10
 
 #endif