diff --git a/src/xenia/cpu/backend/x64/x64_sequences.cc b/src/xenia/cpu/backend/x64/x64_sequences.cc
index ddf61c693..001501b44 100644
--- a/src/xenia/cpu/backend/x64/x64_sequences.cc
+++ b/src/xenia/cpu/backend/x64/x64_sequences.cc
@@ -5640,6 +5640,14 @@ struct VECTOR_SHL_V128
     // Shift 8 words in src1 by amount specified in src2.
     Xbyak::Label emu, end;
 
+    Xmm src1;
+    if (i.src1.is_constant) {
+      src1 = e.xmm2;
+      e.LoadConstantXmm(src1, i.src1.constant());
+    } else {
+      src1 = i.src1;
+    }
+
     // Only bother with this check if shift amt isn't constant.
     if (!i.src2.is_constant) {
       // See if the shift is equal first for a shortcut.
@@ -5653,7 +5661,7 @@ struct VECTOR_SHL_V128
       e.mov(e.rax, 0xF);
       e.vmovq(e.xmm1, e.rax);
       e.vpand(e.xmm0, e.xmm0, e.xmm1);
-      e.vpsllw(i.dest, i.src1, e.xmm0);
+      e.vpsllw(i.dest, src1, e.xmm0);
       e.jmp(end);
     }
 
@@ -5665,7 +5673,7 @@ struct VECTOR_SHL_V128
     } else {
       e.lea(e.r9, e.StashXmm(1, i.src2));
     }
-    e.lea(e.r8, e.StashXmm(0, i.src1));
+    e.lea(e.r8, e.StashXmm(0, src1));
     e.CallNativeSafe(reinterpret_cast<void*>(EmulateVectorShlI16));
     e.vmovaps(i.dest, e.xmm0);