diff --git a/runtime/debugger.cc b/runtime/debugger.cc
index 67099d7..8d34f5a 100644
--- a/runtime/debugger.cc
+++ b/runtime/debugger.cc
@@ -1191,6 +1191,10 @@
       if (error != JDWP::ERR_NONE) {
         return error;
       }
+      // Check if the object's type is compatible with the array's type.
+      if (o != nullptr && !o->InstanceOf(oa->GetClass()->GetComponentType())) {
+        return JDWP::ERR_TYPE_MISMATCH;
+      }
       oa->Set<false>(offset + i, o);
     }
   }