diff --git a/arch/ppc/qemu/ofmem.c b/arch/ppc/qemu/ofmem.c
index afd5808..189dae3 100644
--- a/arch/ppc/qemu/ofmem.c
+++ b/arch/ppc/qemu/ofmem.c
@@ -389,14 +389,11 @@ setup_mmu( unsigned long ramsize )
 	ofmem_t *ofmem;
 	unsigned long sdr1, sr_base, msr;
 	unsigned long hash_base;
-	unsigned long hash_mask = 0xffff0000;
+	unsigned long hash_mask = 0xfff00000; /* alignment for ppc64 */
 	int i;
 
 	/* SDR1: Storage Description Register 1 */
 
-	if(is_ppc64())
-		hash_mask = 0xfff00000;
-
 	hash_base = (ramsize - 0x00100000 - HASH_SIZE) & hash_mask;
         memset((void *)hash_base, 0, HASH_SIZE);
 	sdr1 = hash_base | ((HASH_SIZE-1) >> 16);