diff --git a/pkg/sql/logictest/testdata/logic_test/pg_catalog b/pkg/sql/logictest/testdata/logic_test/pg_catalog
index a85d48c45e78..1560af7aa464 100644
--- a/pkg/sql/logictest/testdata/logic_test/pg_catalog
+++ b/pkg/sql/logictest/testdata/logic_test/pg_catalog
@@ -783,7 +783,7 @@ t1                 j                         -1         NULL      NULL        NU
 t1                 k                         14         NULL      NULL        NULL      false       false      ·            ·
 t1                 l                         -1         NULL      NULL        NULL      false       false      ·            v
 t1                 m                         -1         NULL      NULL        NULL      true        true       a            ·
-t1                 n                         -1         NULL      NULL        NULL      true        true       b            ·
+t1                 n                         -1         NULL      NULL        NULL      true        true       d            ·
 t1_pkey            p                         -1         NULL      NULL        NULL      true        false      ·            ·
 t1_a_key           a                         -1         NULL      NULL        NULL      false       false      ·            ·
 index_key          b                         -1         NULL      NULL        NULL      false       false      ·            ·
diff --git a/pkg/sql/pg_catalog.go b/pkg/sql/pg_catalog.go
index 97ef63286827..8c4f319bf45c 100644
--- a/pkg/sql/pg_catalog.go
+++ b/pkg/sql/pg_catalog.go
@@ -416,7 +416,7 @@ https://www.postgresql.org/docs/12/catalog-pg-attribute.html`,
 				if column.IsGeneratedAlwaysAsIdentity() {
 					generatedAsIdentityType = "a"
 				} else if column.IsGeneratedByDefaultAsIdentity() {
-					generatedAsIdentityType = "b"
+					generatedAsIdentityType = "d"
 				} else {
 					return errors.AssertionFailedf(
 						"column %s is of wrong generated as identity type (neither ALWAYS nor BY DEFAULT)",