diff --git a/pg_wait_sampling.c b/pg_wait_sampling.c
index 4b7e030..32f2bdd 100644
--- a/pg_wait_sampling.c
+++ b/pg_wait_sampling.c
@@ -524,6 +524,9 @@ pg_wait_sampling_get_current(PG_FUNCTION_ARGS)
 						   TEXTOID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 4, "queryid",
 						   INT8OID, -1, 0);
+#if PG_VERSION_NUM >= 190000
+		TupleDescFinalize(tupdesc);
+#endif
 
 		funcctx->tuple_desc = BlessTupleDesc(tupdesc);
 
@@ -757,6 +760,9 @@ pg_wait_sampling_get_profile(PG_FUNCTION_ARGS)
 						   INT8OID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 5, "count",
 						   INT8OID, -1, 0);
+#if PG_VERSION_NUM >= 190000
+		TupleDescFinalize(tupdesc);
+#endif
 		funcctx->tuple_desc = BlessTupleDesc(tupdesc);
 
 		MemoryContextSwitchTo(oldcontext);
@@ -882,6 +888,9 @@ pg_wait_sampling_get_history(PG_FUNCTION_ARGS)
 						   TEXTOID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 5, "queryid",
 						   INT8OID, -1, 0);
+#if PG_VERSION_NUM >= 190000
+		TupleDescFinalize(tupdesc);
+#endif
 		funcctx->tuple_desc = BlessTupleDesc(tupdesc);
 
 		MemoryContextSwitchTo(oldcontext);