diff --git a/Source/Core/Common/x64Emitter.cpp b/Source/Core/Common/x64Emitter.cpp
index e7ab88396d..0f37c547d2 100644
--- a/Source/Core/Common/x64Emitter.cpp
+++ b/Source/Core/Common/x64Emitter.cpp
@@ -1638,6 +1638,7 @@ void XEmitter::PACKUSWB(X64Reg dest, OpArg arg) {WriteSSEOp(0x66, 0x67, dest, ar
 void XEmitter::PUNPCKLBW(X64Reg dest, const OpArg &arg) {WriteSSEOp(0x66, 0x60, dest, arg);}
 void XEmitter::PUNPCKLWD(X64Reg dest, const OpArg &arg) {WriteSSEOp(0x66, 0x61, dest, arg);}
 void XEmitter::PUNPCKLDQ(X64Reg dest, const OpArg &arg) {WriteSSEOp(0x66, 0x62, dest, arg);}
+void XEmitter::PUNPCKLQDQ(X64Reg dest, const OpArg &arg) {WriteSSEOp(0x66, 0x6C, dest, arg);}
 
 void XEmitter::PSRLW(X64Reg reg, int shift)
 {
diff --git a/Source/Core/Common/x64Emitter.h b/Source/Core/Common/x64Emitter.h
index 1c32c54969..962f685108 100644
--- a/Source/Core/Common/x64Emitter.h
+++ b/Source/Core/Common/x64Emitter.h
@@ -680,6 +680,7 @@ public:
 	void PUNPCKLBW(X64Reg dest, const OpArg &arg);
 	void PUNPCKLWD(X64Reg dest, const OpArg &arg);
 	void PUNPCKLDQ(X64Reg dest, const OpArg &arg);
+	void PUNPCKLQDQ(X64Reg dest, const OpArg &arg);
 
 	void PTEST(X64Reg dest, OpArg arg);
 	void PAND(X64Reg dest, OpArg arg);
diff --git a/Source/UnitTests/Common/x64EmitterTest.cpp b/Source/UnitTests/Common/x64EmitterTest.cpp
index 614847e955..1f7d08f114 100644
--- a/Source/UnitTests/Common/x64EmitterTest.cpp
+++ b/Source/UnitTests/Common/x64EmitterTest.cpp
@@ -810,6 +810,7 @@ TWO_OP_SSE_TEST(PACKUSWB, "dqword")
 TWO_OP_SSE_TEST(PUNPCKLBW, "dqword")
 TWO_OP_SSE_TEST(PUNPCKLWD, "dqword")
 TWO_OP_SSE_TEST(PUNPCKLDQ, "dqword")
+TWO_OP_SSE_TEST(PUNPCKLQDQ, "dqword")
 
 TWO_OP_SSE_TEST(PTEST, "dqword")
 TWO_OP_SSE_TEST(PAND, "dqword")