diff --git a/src/include/utils/timeout.h b/src/include/utils/timeout.h
index 0965b590b34..4bae392fbd3 100644
--- a/src/include/utils/timeout.h
+++ b/src/include/utils/timeout.h
@@ -58,7 +58,7 @@ typedef enum TimeoutType
 typedef struct
 {
 	TimeoutId	id;				/* timeout to set */
-	TimeoutType type;			/* TMPARAM_AFTER or TMPARAM_AT */
+	TimeoutType type;
 	int			delay_ms;		/* only used for TMPARAM_AFTER/EVERY */
 	TimestampTz fin_time;		/* only used for TMPARAM_AT */
 } EnableTimeoutParams;