diff --git a/GPU/GPUCommon.cpp b/GPU/GPUCommon.cpp
index 9358a99ed9..167f7ddbf8 100644
--- a/GPU/GPUCommon.cpp
+++ b/GPU/GPUCommon.cpp
@@ -2708,7 +2708,8 @@ void GPUCommon::ResetListState(int listID, DisplayListState state) {
 
 GPUDebugOp GPUCommon::DissassembleOp(u32 pc, u32 op) {
 	char buffer[1024];
-	GeDisassembleOp(pc, op, Memory::Read_U32(pc - 4), buffer, sizeof(buffer));
+	u32 prev = Memory::IsValidAddress(pc - 4) ? Memory::ReadUnchecked_U32(pc - 4) : 0;
+	GeDisassembleOp(pc, op, prev, buffer, sizeof(buffer));
 
 	GPUDebugOp info;
 	info.pc = pc;