diff --git a/agentscope-core/src/main/java/io/agentscope/core/ReActAgent.java b/agentscope-core/src/main/java/io/agentscope/core/ReActAgent.java
index 2de490fa0..ecf3693b8 100644
--- a/agentscope-core/src/main/java/io/agentscope/core/ReActAgent.java
+++ b/agentscope-core/src/main/java/io/agentscope/core/ReActAgent.java
@@ -648,7 +648,10 @@ protected Mono<Msg> summarizing() {
                                                                     postEvent -> {
                                                                         Msg finalMsg =
                                                                                 postEvent
-                                                                                        .getSummaryMessage();
+                                                                                        .getSummaryMessage()
+                                                                                        .withGenerateReason(
+                                                                                                GenerateReason
+                                                                                                        .MAX_ITERATIONS);
                                                                         memory.addMessage(finalMsg);
                                                                         return finalMsg;
                                                                     }));
diff --git a/agentscope-core/src/test/java/io/agentscope/core/agent/ReActAgentTest.java b/agentscope-core/src/test/java/io/agentscope/core/agent/ReActAgentTest.java
index 46536c692..11faa9146 100644
--- a/agentscope-core/src/test/java/io/agentscope/core/agent/ReActAgentTest.java
+++ b/agentscope-core/src/test/java/io/agentscope/core/agent/ReActAgentTest.java
@@ -29,6 +29,7 @@
 import io.agentscope.core.agent.test.TestUtils;
 import io.agentscope.core.memory.InMemoryMemory;
 import io.agentscope.core.message.ContentBlock;
+import io.agentscope.core.message.GenerateReason;
 import io.agentscope.core.message.Msg;
 import io.agentscope.core.message.MsgRole;
 import io.agentscope.core.message.TextBlock;
@@ -476,9 +477,13 @@ void testMaxIterations() {
 
         // Get response with timeout
         // Verify it completes within reasonable time (not infinite loop)
-        agent.call(userMsg)
-                .timeout(Duration.ofMillis(TestConstants.DEFAULT_TEST_TIMEOUT_MS))
-                .block(Duration.ofMillis(TestConstants.DEFAULT_TEST_TIMEOUT_MS));
+        Msg response =
+                agent.call(userMsg)
+                        .timeout(Duration.ofMillis(TestConstants.DEFAULT_TEST_TIMEOUT_MS))
+                        .block(Duration.ofMillis(TestConstants.DEFAULT_TEST_TIMEOUT_MS));
+
+        // Verify max iterations generate reason was respected
+        assertEquals(GenerateReason.MAX_ITERATIONS, response.getGenerateReason());
 
         // Verify max iterations was respected
         assertTrue(