diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td
index d86a6cf83059..1474881295ee 100644
--- a/llvm/lib/Target/X86/X86InstrSSE.td
+++ b/llvm/lib/Target/X86/X86InstrSSE.td
@@ -1988,7 +1988,7 @@ def PUNPCKHDQrm : PDI<0x6A, MRMSrcMem,
                                 UNPCKH_shuffle_mask)))]>;
 def PUNPCKHQDQrr : PDI<0x6D, MRMSrcReg, 
                        (ops VR128:$dst, VR128:$src1, VR128:$src2),
-                       "punpckhdq {$src2, $dst|$dst, $src2}",
+                       "punpckhqdq {$src2, $dst|$dst, $src2}",
                       [(set VR128:$dst,
                         (v2i64 (vector_shuffle VR128:$src1, VR128:$src2,
                                 UNPCKH_shuffle_mask)))]>;