diff --git a/include/chsrc.h b/include/chsrc.h
index 401f6d2..6fe2535 100644
--- a/include/chsrc.h
+++ b/include/chsrc.h
@@ -5,7 +5,7 @@
  * Authors       : Aoran Zeng <ccmywish@qq.com>
  *               | Heng Guo   <2085471348@qq.com>
  * Created on    : <2023-08-29>
- * Last modified : <2024-06-11>
+ * Last modified : <2024-06-13>
  *
  * chsrc 头文件
  * ------------------------------------------------------------*/
@@ -257,6 +257,14 @@ auto_select_ (SourceInfo *sources, size_t size, const char *target)
   bool onlyone = false;
   if (2==size) onlyone = true;
 
+  char *check_curl = xy_str_to_quietcmd ("curl --version");
+  bool  exist_curl = query_program_exist (check_curl, "curl");
+  if (!exist_curl)
+    {
+      chsrc_error ("没有curl命令，无法测速");
+      exit (1);
+    }
+
   double speeds[size];
   double speed = 0.0;
   for (int i=0;i<size;i++)
diff --git a/src/chsrc.c b/src/chsrc.c
index badf2ee..9807358 100644
--- a/src/chsrc.c
+++ b/src/chsrc.c
@@ -10,7 +10,7 @@
  * chsrc: Change Source —— 全平台通用命令行换源工具
  * ------------------------------------------------------------*/
 
-#define Chsrc_Version      "v0.1.7.pre-2024/06/12"
+#define Chsrc_Version      "v0.1.7.pre-2024/06/13"
 #define Chsrc_Maintain_URL "https://gitee.com/RubyMetric/chsrc"
 
 #include "chsrc.h"
@@ -2654,13 +2654,6 @@ get_target (const char *input, TargetOp code, char *option)
     }
   else if (TargetOp_Cesu_Source==code)
     {
-      char* check_cmd = xy_str_to_quietcmd ("curl --version");
-      bool exist_b = query_program_exist (check_cmd, "curl");
-      if (!exist_b)
-        {
-          chsrc_error ("没有curl命令，无法测速");
-          exit (1);
-        }
       auto_select_ (target->sources, target->sources_n, input-3);
       return true;
     }