diff --git a/sys/powerpc/aim/mmu_radix.c b/sys/powerpc/aim/mmu_radix.c
index 32d08d2d7026..9c5b67121803 100644
--- a/sys/powerpc/aim/mmu_radix.c
+++ b/sys/powerpc/aim/mmu_radix.c
@@ -67,6 +67,7 @@
 #include <vm/vm_extern.h>
 #include <vm/vm_pageout.h>
 #include <vm/vm_phys.h>
+#include <vm/vm_radix.h>
 #include <vm/vm_reserv.h>
 #include <vm/vm_dumpset.h>
 #include <vm/uma.h>