diff --git a/src/shell.h b/src/shell.h
index 1c602e5..8147684 100644
--- a/src/shell.h
+++ b/src/shell.h
@@ -14,10 +14,6 @@
 
 #include "shell_cfg.h"
 
-#if SHELL_USING_COMPANION == 1
-#include "shell_companion.h"
-#endif
-
 #define     SHELL_VERSION               "3.0.3"                 /**< 版本号 */
 
 
@@ -400,5 +396,24 @@ void shellHandler(Shell *shell, char data);
 void shellTask(void *param);
 int shellRun(Shell *shell, const char *cmd);
 
+
+
+#if SHELL_USING_COMPANION == 1
+/**
+ * @brief shell伴生对象定义
+ */
+typedef struct shell_companion_object
+{
+    int id;                                                     /**< 伴生对象ID */
+    void *obj;                                                  /**< 伴生对象 */
+    struct shell_companion_object *next;                        /**< 下一个伴生对象 */
+} ShellCompanionObj;
+
+
+signed char shellCompanionAdd(Shell *shell, int id, void *object);
+signed char shellCompanionDel(Shell *shell, int id);
+void *shellCompanionGet(Shell *shell, int id);
+#endif
+
 #endif
 
diff --git a/src/shell_companion.c b/src/shell_companion.c
index 85cf4cc..eb494c7 100644
--- a/src/shell_companion.c
+++ b/src/shell_companion.c
@@ -8,10 +8,9 @@
  * @copyright (c) 2020 Letter
  * 
  */
- #include "shell_companion.h"
  #include "shell.h"
  
-
+#if SHELL_USING_COMPANION == 1
 /**
  * @brief shell添加伴生对象
  * 
@@ -20,7 +19,7 @@
  * @param object 伴生对象
  * @return signed char 0 添加成功 -1 添加失败
  */
-signed char shellCompanionAdd(struct shell_def *shell, int id, void *object)
+signed char shellCompanionAdd(Shell *shell, int id, void *object)
 {
     ShellCompanionObj *companions = shell->info.companions;
     ShellCompanionObj *node = SHELL_MALLOC(sizeof(ShellCompanionObj));
@@ -39,7 +38,7 @@ signed char shellCompanionAdd(struct shell_def *shell, int id, void *object)
  * @param id 伴生对象ID
  * @return signed char 0 删除成功 -1 无匹配对象
  */
-signed char shellCompanionDel(struct shell_def *shell, int id)
+signed char shellCompanionDel(Shell *shell, int id)
 {
     ShellCompanionObj *companions = shell->info.companions;
     ShellCompanionObj *front = companions;
@@ -71,7 +70,7 @@ signed char shellCompanionDel(struct shell_def *shell, int id)
  * @param id 伴生对象ID
  * @return void* 伴生对象，无匹配对象时返回NULL
  */
-void *shellCompanionGet(struct shell_def *shell, int id)
+void *shellCompanionGet(Shell *shell, int id)
 {
     SHELL_ASSERT(shell, return (void *)0);
     ShellCompanionObj *companions = shell->info.companions;
@@ -85,3 +84,4 @@ void *shellCompanionGet(struct shell_def *shell, int id)
     }
     return (void *)0;
 }
+#endif /** SHELL_USING_COMPANION == 1 */
diff --git a/src/shell_companion.h b/src/shell_companion.h
deleted file mode 100644
index 6c24db1..0000000
--- a/src/shell_companion.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/**
- * @file shell_companion.h
- * @author Letter (nevermindzzt@gmail.com)
- * @brief shell companion object support
- * @version 3.0.3
- * @date 2020-07-22
- * 
- * @copyright (c) 2020 Letter
- * 
- */
-#ifndef __SHELL_COMPANION_H__
-#define __SHELL_COMPANION_H__
-
-#include "shell_cfg.h"
-#include "shell.h"
-
-/**
- * @brief shell伴生对象定义
- */
-typedef struct shell_companion_object
-{
-    int id;                                                     /**< 伴生对象ID */
-    void *obj;                                                  /**< 伴生对象 */
-    struct shell_companion_object *next;                        /**< 下一个伴生对象 */
-} ShellCompanionObj;
-
-
-signed char shellCompanionAdd(struct shell_def *shell, int id, void *object);
-signed char shellCompanionDel(struct shell_def *shell, int id);
-void *shellCompanionGet(struct shell_def *shell, int id);
-
-
-#endif