--- a/js/src/jit/shared/BaseAssembler-x86-shared.h
+++ b/js/src/jit/shared/BaseAssembler-x86-shared.h
@@ -4599,17 +4599,17 @@ private:
 
         void twoByteOpVex(VexOperandType ty, TwoByteOpcodeID opcode,
                           int offset, RegisterID base, XMMRegisterID src0, int reg)
         {
             int r = (reg >> 3), x = 0, b = (base >> 3);
             int m = 1; // 0x0F
             int w = 0, v = src0, l = 0;
             threeOpVex(ty, r, x, b, m, w, v, l, opcode);
-            memoryModRM_disp32(offset, base, reg);
+            memoryModRM(offset, base, reg);
         }
 
         void twoByteOp_disp32(TwoByteOpcodeID opcode, int offset, RegisterID base, int reg)
         {
             m_buffer.ensureSpace(maxInstructionSize);
             emitRexIfNeeded(reg, 0, base);
             m_buffer.putByteUnchecked(OP_2BYTE_ESCAPE);
             m_buffer.putByteUnchecked(opcode);