diff --git a/Source/Core/Common/x64Emitter.cpp b/Source/Core/Common/x64Emitter.cpp
index 5cba748727..75fe76f893 100644
--- a/Source/Core/Common/x64Emitter.cpp
+++ b/Source/Core/Common/x64Emitter.cpp
@@ -1474,7 +1474,7 @@ void XEmitter::PADDUSW(X64Reg dest, OpArg arg)  {WriteSSEOp(64, 0xDD, true, dest
 void XEmitter::PSUBB(X64Reg dest, OpArg arg)    {WriteSSEOp(64, 0xF8, true, dest, arg);}
 void XEmitter::PSUBW(X64Reg dest, OpArg arg)    {WriteSSEOp(64, 0xF9, true, dest, arg);}
 void XEmitter::PSUBD(X64Reg dest, OpArg arg)    {WriteSSEOp(64, 0xFA, true, dest, arg);}
-void XEmitter::PSUBQ(X64Reg dest, OpArg arg)    {WriteSSEOp(64, 0xDB, true, dest, arg);}
+void XEmitter::PSUBQ(X64Reg dest, OpArg arg)    {WriteSSEOp(64, 0xFB, true, dest, arg);}
 
 void XEmitter::PSUBSB(X64Reg dest, OpArg arg)   {WriteSSEOp(64, 0xE8, true, dest, arg);}
 void XEmitter::PSUBSW(X64Reg dest, OpArg arg)   {WriteSSEOp(64, 0xE9, true, dest, arg);}