diff --git a/zuc/eia256_asm_ppc64x.s b/zuc/eia256_asm_ppc64x.s
index 8d14939..a737013 100644
--- a/zuc/eia256_asm_ppc64x.s
+++ b/zuc/eia256_asm_ppc64x.s
@@ -92,7 +92,7 @@ TEXT ·eia256RoundTag8(SB),NOSPLIT,$0
 	VSLDOI $8, KS_M2, KS_M1, KS_M1
 	VPMSUMD XTMP2, KS_M1, XTMP4
 	VXOR XTMP3, XTMP4, XTMP3
-	VSPLTW $2, XTMP3, XTMP3, XTMP3
+	VSPLTW $2, XTMP3, XTMP3
 	VSLDOI $12, XDIGEST, XTMP3, XDIGEST
 
 	// Update tag