diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/DefaultApacheHttpClientBuilder.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/DefaultApacheHttpClientBuilder.java
index f69dcc6c4..fda72a76b 100644
--- a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/DefaultApacheHttpClientBuilder.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/DefaultApacheHttpClientBuilder.java
@@ -58,9 +58,8 @@ public class DefaultApacheHttpClientBuilder implements ApacheHttpClientBuilder {
 
   private HttpClientBuilder httpClientBuilder;
 
-  private boolean prepared = false;
-
   private DefaultApacheHttpClientBuilder() {
+    prepare();
   }
 
   public static DefaultApacheHttpClientBuilder get() {
@@ -153,11 +152,6 @@ public class DefaultApacheHttpClientBuilder implements ApacheHttpClientBuilder {
 
   @Override
   public CloseableHttpClient build() {
-    if (!this.prepared) {
-      prepare();
-      this.prepared = true;
-    }
-
     return this.httpClientBuilder.build();
   }