diff --git a/src/xbee.c b/src/xbee.c
index cc16c983..43fdc077 100644
--- a/src/xbee.c
+++ b/src/xbee.c
@@ -160,7 +160,7 @@ struct XBeeStaticticsSummary {
 #define XBEE_STATS_TRANSMIT 2
 #define XBEE_STATS_RECEIVE 3
 
-static const char* groupNames[] =
+static const char * const groupNames[] =
   {
    "FRAME_LOCAL",
    "FRAME_REMOTE",