diff --git a/Source/Core/Core/DSP/Jit/x64/DSPJitArithmetic.cpp b/Source/Core/Core/DSP/Jit/x64/DSPJitArithmetic.cpp
index 8e54bd60aa..46c44617ef 100644
--- a/Source/Core/Core/DSP/Jit/x64/DSPJitArithmetic.cpp
+++ b/Source/Core/Core/DSP/Jit/x64/DSPJitArithmetic.cpp
@@ -701,9 +701,7 @@ void DSPEmitter::addi(const UDSPInstruction opc)
   //	s64 imm = (s16)dsp_fetch_code();
   s16 imm = dsp_imem_read(m_compile_pc + 1);
   // imm <<= 16;
-  MOV(16, R(RDX), Imm16(imm));
-  MOVSX(64, 16, RDX, R(RDX));
-  SHL(64, R(RDX), Imm8(16));
+  MOV(64, R(RDX), Imm32(imm << 16));
   //	s64 res = acc + imm;
   ADD(64, R(RAX), R(RDX));
   //	dsp_set_long_acc(areg, res);