diff --git a/MCInst.c b/MCInst.c
index d6f513ad..8ca3f8c2 100644
--- a/MCInst.c
+++ b/MCInst.c
@@ -27,21 +27,6 @@ void MCInst_clear(MCInst *inst)
 	inst->size = 0;
 }
 
-// NOTE: this will free @Op argument
-void MCInst_insert(MCInst *inst, int index, MCOperand *Op)
-{
-	int i;
-
-	for(i = inst->size; i > index; i--)
-		//memcpy(&(inst->Operands[i]), &(inst->Operands[i-1]), sizeof(MCOperand));
-		inst->Operands[i] = inst->Operands[i-1];
-
-	inst->Operands[index] = *Op;
-	inst->size++;
-
-	cs_mem_free(Op);
-}
-
 // do not free @Op
 void MCInst_insert0(MCInst *inst, int index, MCOperand *Op)
 {
diff --git a/MCInst.h b/MCInst.h
index e3371618..ab3945e4 100644
--- a/MCInst.h
+++ b/MCInst.h
@@ -115,9 +115,6 @@ void MCInst_Init(cs_struct *handle, MCInst *inst);
 
 void MCInst_clear(MCInst *inst);
 
-// free operand after inserting
-void MCInst_insert(MCInst *inst, int index, MCOperand *Op);
-
 // do not free operand after inserting
 void MCInst_insert0(MCInst *inst, int index, MCOperand *Op);
 
diff --git a/arch/PowerPC/PPCDisassembler.c b/arch/PowerPC/PPCDisassembler.c
index 3fd2eae5..a7e63713 100644
--- a/arch/PowerPC/PPCDisassembler.c
+++ b/arch/PowerPC/PPCDisassembler.c
@@ -224,7 +224,7 @@ static DecodeStatus decodeMemRIOperands(MCInst *Inst, uint64_t Imm,
 		case PPC_STWU:
 		case PPC_STFSU:
 		case PPC_STFDU:
-				 MCInst_insert(Inst, 0, MCOperand_CreateReg(GP0Regs[Base]));
+				 MCInst_insert0(Inst, 0, MCOperand_CreateReg1(Inst, GP0Regs[Base]));
 				 break;
 	}
 
@@ -248,7 +248,7 @@ static DecodeStatus decodeMemRIXOperands(MCInst *Inst, uint64_t Imm,
 		// Add the tied output operand.
 		MCOperand_CreateReg0(Inst, GP0Regs[Base]);
 	else if (MCInst_getOpcode(Inst) == PPC_STDU)
-		MCInst_insert(Inst, 0, MCOperand_CreateReg(GP0Regs[Base]));
+		MCInst_insert0(Inst, 0, MCOperand_CreateReg1(Inst, GP0Regs[Base]));
 
 	MCOperand_CreateImm0(Inst, SignExtend64(Disp << 2, 16));
 	MCOperand_CreateReg0(Inst, GP0Regs[Base]);