diff --git a/src/compiler/evm_frontend/evm_mir_compiler.cpp b/src/compiler/evm_frontend/evm_mir_compiler.cpp
index aefdfad7..5b834371 100644
--- a/src/compiler/evm_frontend/evm_mir_compiler.cpp
+++ b/src/compiler/evm_frontend/evm_mir_compiler.cpp
@@ -2693,6 +2693,18 @@ EVMMirBuilder::handleMLoad(Operand AddrComponents) {
 
   Operand Bytes32Op(MemPtr, EVMType::BYTES32);
   Operand Result = convertBytes32ToU256Operand(Bytes32Op);
+
+  // Pin loaded values into local variables so the backend cannot reschedule
+  // the memory reads past later function calls (e.g. CODECOPY / MSTORE) that
+  // may modify the same memory region.  Without this, an MLOAD result that
+  // stays on the EVM stack across a memory-writing opcode could observe the
+  // *new* contents instead of the value at the time of the MLOAD.
+  U256Inst Parts = extractU256Operand(Result);
+  for (int I = 0; I < static_cast<int>(EVM_ELEMENTS_COUNT); ++I) {
+    Parts[I] = protectUnsafeValue(Parts[I], I64Type);
+  }
+  Result = Operand(Parts, EVMType::UINT256);
+
 #ifdef ZEN_ENABLE_EVM_GAS_REGISTER
   reloadGasFromMemory();
 #endif