diff --git a/apps/app_queue.c b/apps/app_queue.c
index 01fdcf3aa9..688ffed134 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -394,7 +394,7 @@ struct call_queue {
 	int announcefrequency;              /*!< How often to announce their position */
 	int periodicannouncefrequency;      /*!< How often to play periodic announcement */
 	int roundingseconds;                /*!< How many seconds do we round to? */
-	int holdtime;                       /*!< Current avg holdtime, based on recursive boxcar filter */
+	int holdtime;                       /*!< Current avg holdtime, based on an exponential average */
 	int callscompleted;                 /*!< Number of queue calls completed */
 	int callsabandoned;                 /*!< Number of queue calls abandoned */
 	int servicelevel;                   /*!< seconds setting for servicelevel*/
@@ -1627,7 +1627,7 @@ static void recalc_holdtime(struct queue_ent *qe, int newholdtime)
 {
 	int oldvalue;
 
-	/* Calculate holdtime using a recursive boxcar filter */
+	/* Calculate holdtime using an exponential average */
 	/* Thanks to SRT for this contribution */
 	/* 2^2 (4) is the filter coefficient; a higher exponent would give old entries more weight */