diff --git a/contrib/pg_plan_advice/pgpa_join.c b/contrib/pg_plan_advice/pgpa_join.c
index 38e7b91ed7e..067321081e7 100644
--- a/contrib/pg_plan_advice/pgpa_join.c
+++ b/contrib/pg_plan_advice/pgpa_join.c
@@ -93,7 +93,7 @@ pgpa_create_join_unroller(void)
  *
  * pgpa_plan_walker creates a "top level" join unroller object when it
  * encounters a join in a portion of the plan tree in which no join unroller
- * is already active. From there, this function is responsible for determing
+ * is already active. From there, this function is responsible for determining
  * to what portion of the plan tree that join unroller applies, and for
  * creating any subordinate join unroller objects that are needed as a result
  * of non-outer-deep join trees. We do this by returning the join unroller
diff --git a/contrib/pg_plan_advice/pgpa_output.c b/contrib/pg_plan_advice/pgpa_output.c
index ed5a9340671..dd3ba692a86 100644
--- a/contrib/pg_plan_advice/pgpa_output.c
+++ b/contrib/pg_plan_advice/pgpa_output.c
@@ -114,7 +114,7 @@ pgpa_output_advice(StringInfo buf, pgpa_plan_walker_context *walker,
 	context.wrap_column = 76;
 
 	/*
-	 * Each piece of JOIN_ORDER() advice fully describes the join order for a
+	 * Each piece of JOIN_ORDER() advice fully describes the join order for
 	 * a single unrolled join. Merging is not permitted, because that would
 	 * change the meaning, e.g. SEQ_SCAN(a b c d) means simply that sequential
 	 * scans should be used for all of those relations, and is thus equivalent