diff --git a/stack/bnep/bnep_utils.c b/stack/bnep/bnep_utils.c
index a0c8846..e16ffca 100644
--- a/stack/bnep/bnep_utils.c
+++ b/stack/bnep/bnep_utils.c
@@ -886,7 +886,7 @@
         BNEP_TRACE_ERROR("%s: BNEP - bad ctl pkt type: %d", __func__,
                          control_type);
         bnep_send_command_not_understood (p_bcb, control_type);
-        if (is_ext)
+        if (is_ext && (ext_len > 0))
         {
             if (*rem_len < (ext_len - 1)) {
                 goto bad_packet_length;