diff --git a/src/main/java/com/google/genai/ApiClient.java b/src/main/java/com/google/genai/ApiClient.java
index 90ca5bd56c2..5b1e457053a 100644
--- a/src/main/java/com/google/genai/ApiClient.java
+++ b/src/main/java/com/google/genai/ApiClient.java
@@ -231,7 +231,7 @@ private OkHttpClient createHttpClient(
 
     httpOptions
         .timeout()
-        .ifPresent(connectTimeout -> builder.connectTimeout(Duration.ofMillis(connectTimeout)));
+        .ifPresent(timeout -> builder.callTimeout(Duration.ofMillis(timeout)));
 
     HttpRetryOptions retryOptions =
         httpOptions.retryOptions().orElse(HttpRetryOptions.builder().build());
diff --git a/src/test/java/com/google/genai/HttpApiClientTest.java b/src/test/java/com/google/genai/HttpApiClientTest.java
index d76a3d7958e..451d4b5b571 100644
--- a/src/test/java/com/google/genai/HttpApiClientTest.java
+++ b/src/test/java/com/google/genai/HttpApiClientTest.java
@@ -872,7 +872,7 @@ public void testHttpClientMLDevTimeout() throws Exception {
     OkHttpClient httpClient = client.httpClient();
     assertNotNull(httpClient);
 
-    assertEquals(5000, httpClient.connectTimeoutMillis());
+    assertEquals(5000, httpClient.callTimeoutMillis());
     assertEquals(API_KEY, client.apiKey());
     assertFalse(client.vertexAI());
   }
@@ -892,7 +892,7 @@ public void testHttpClientVertexTimeout() throws Exception {
     OkHttpClient httpClient = client.httpClient();
     assertNotNull(httpClient);
 
-    assertEquals(4999, httpClient.connectTimeoutMillis());
+    assertEquals(4999, httpClient.callTimeoutMillis());
     assertEquals(PROJECT, client.project());
     assertEquals(LOCATION, client.location());
     assertTrue(client.vertexAI());