diff --git a/rigs/kenwood/flex.c b/rigs/kenwood/flex.c
index d64bf6fac..75f3c8c1b 100644
--- a/rigs/kenwood/flex.c
+++ b/rigs/kenwood/flex.c
@@ -70,36 +70,36 @@ int verify_flexradio_id(RIG *rig, char *id)
 
     if (strcmp("900", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (PowerSDR compatible)\n",
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (PowerSDR compatible)\n",
                   __func__, id);
     }
     else if (strcmp("904", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (Flex 6700)\n", __func__, id);
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (Flex 6700)\n", __func__, id);
     }
     else if (strcmp("905", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (Flex 6500)\n", __func__, id);
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (Flex 6500)\n", __func__, id);
     }
     else if (strcmp("906", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (Flex 6500R)\n", __func__, id);
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (Flex 6500R)\n", __func__, id);
     }
     else if (strcmp("907", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (Flex 6300)\n", __func__, id);
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (Flex 6300)\n", __func__, id);
     }
     else if (strcmp("908", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (Flex 6400)\n", __func__, id);
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (Flex 6400)\n", __func__, id);
     }
     else if (strcmp("909", idptr) == 0)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s (Flex 6600)\n", __func__, id);
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %.5s (Flex 6600)\n", __func__, id);
     }
     else
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig (%s) is not a Flex 6000 Series\n",
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig (%.5s) is not a Flex 6000 Series\n",
                   __func__, id);
         return -RIG_EPROTO;
     }