diff --git a/database/sqlmigrate/sqlmigrate.go b/database/sqlmigrate/sqlmigrate.go
index 58ff60d..9537446 100644
--- a/database/sqlmigrate/sqlmigrate.go
+++ b/database/sqlmigrate/sqlmigrate.go
@@ -65,9 +65,9 @@ type Migrator interface {
 }
 
 // idFromInsert extracts the hex ID from an INSERT INTO _migrations line.
-// Matches: INSERT INTO _migrations (name, id) VALUES ('...', '<hex>');
+// Matches: INSERT INTO [schema.]_migrations (name, id) VALUES ('...', '<hex>');
 var idFromInsert = regexp.MustCompile(
-	`(?i)INSERT\s+INTO\s+_migrations\s*\(\s*name\s*,\s*id\s*\)\s*VALUES\s*\(\s*'[^']*'\s*,\s*'([0-9a-fA-F]+)'\s*\)`,
+	`(?i)INSERT\s+INTO\s+(?:\w+\.)?_migrations\s*\(\s*name\s*,\s*id\s*\)\s*VALUES\s*\(\s*'[^']*'\s*,\s*'([0-9a-fA-F]+)'\s*\)`,
 )
 
 // Collect reads .up.sql and .down.sql files from fsys under subpath,
diff --git a/database/sqlmigrate/sqlmigrate_test.go b/database/sqlmigrate/sqlmigrate_test.go
index c770515..3026b94 100644
--- a/database/sqlmigrate/sqlmigrate_test.go
+++ b/database/sqlmigrate/sqlmigrate_test.go
@@ -107,6 +107,20 @@ func TestCollect(t *testing.T) {
 		}
 	})
 
+	t.Run("parses ID from schema-prefixed INSERT", func(t *testing.T) {
+		fsys := fstest.MapFS{
+			"001_init.up.sql":   {Data: []byte("CREATE TABLE authz._migrations (id CHAR(8) PRIMARY KEY, name VARCHAR(80));\nINSERT INTO authz._migrations (name, id) VALUES ('001_init', 'abcd1234');")},
+			"001_init.down.sql": {Data: []byte("DROP TABLE authz._migrations;")},
+		}
+		ddls, err := sqlmigrate.Collect(fsys, ".")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if ddls[0].ID != "abcd1234" {
+			t.Errorf("ID = %q, want %q", ddls[0].ID, "abcd1234")
+		}
+	})
+
 	t.Run("no ID when no INSERT", func(t *testing.T) {
 		fsys := fstest.MapFS{
 			"001_init.up.sql":   {Data: []byte("CREATE TABLE a;")},