diff --git a/components/net/at/src/at_server.c b/components/net/at/src/at_server.c
index 9e5d9174b16093bd34503942b664dadaab067ecf..fe150d83f70c53eed3004dd409259d27e8413c85 100644
--- a/components/net/at/src/at_server.c
+++ b/components/net/at/src/at_server.c
@@ -538,7 +538,7 @@ int at_server_init(void)
     }
 
     /* initialize the AT commands table.*/
-#if defined(__CC_ARM)                                 /* ARM C Compiler */
+#if defined(__ARMCC_VERSION)                                 /* ARM C Compiler */
     extern const int RtAtCmdTab$$Base;
     extern const int RtAtCmdTab$$Limit;
     cmd_table = (at_cmd_t)&RtAtCmdTab$$Base;