diff --git a/at/at8.cpp b/at/at8.cpp
index 2f36b76e7..677ccaf21 100755
--- a/at/at8.cpp
+++ b/at/at8.cpp
@@ -4,7 +4,7 @@
 
 #include "at8.h"
 
-#define usage   "Error - usage : %s -{1|2|3|4|7|8|9}"
+#define usage   "Error - usage : %s -{1|2|3|4|6|7|8|9}"
 
 int main(int argc,char** argv)
 
@@ -26,8 +26,8 @@ int main(int argc,char** argv)
     rt = at8500(argc,argv) ; break;
 //  case 5:
     //rt = at8600(argc,argv) ; break;
-//  case 6:
-//    rt = at8700(argc,argv) ; break;
+  case 6:
+    rt = at8700(argc,argv) ; break;
   case 7:
     rt = at8800(argc,argv) ; break;
   case 8: