diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index cfa768203d085e3c3fd7486758513883e40c7ae6..b9d9fed8f36e355083f32d22de3ba2274fa5fb71 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -200,6 +200,7 @@ _GLOBAL(_tlbivax_bcast)
 	rlwimi	r5,r4,0,16,31
 	wrteei	0
 	mtspr	SPRN_MMUCR,r5
+	isync
 /*	tlbivax	0,r3 - use .long to avoid binutils deps */
 	.long 0x7c000624 | (r3 << 11)
 	isync