diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c
index 60000aa..8ec6a5a 100644
--- a/src/backend/utils/adt/selfuncs.c
+++ b/src/backend/utils/adt/selfuncs.c
@@ -6150,7 +6150,7 @@ genericcostestimate(PlannerInfo *root,
 	 * ORDER BY expressions.
 	 *
 	 * Note: this neglects the possible costs of rechecking lossy operators
-	 * and OR-clause expressions.  Detecting that that might be needed seems
+	 * and OR-clause expressions.  Detecting that might be needed seems
 	 * more expensive than it's worth, though, considering all the other
 	 * inaccuracies here ...
 	 */