diff --git a/pgtype/record.go b/pgtype/record.go
index 26411af2..aeca1c54 100644
--- a/pgtype/record.go
+++ b/pgtype/record.go
@@ -98,9 +98,10 @@ func (dst *Record) DecodeBinary(ci *ConnInfo, src []byte) error {
 
 		var binaryDecoder BinaryDecoder
 		if dt, ok := ci.DataTypeForOID(fieldOID); ok {
-			if binaryDecoder, ok = dt.Value.(BinaryDecoder); !ok {
-				return errors.Errorf("unknown oid while decoding record: %v", fieldOID)
-			}
+			binaryDecoder, _ = dt.Value.(BinaryDecoder)
+		}
+		if binaryDecoder == nil {
+			return errors.Errorf("unknown oid while decoding record: %v", fieldOID)
 		}
 
 		var fieldBytes []byte
diff --git a/pgtype/record_test.go b/pgtype/record_test.go
index dc01cbbf..7cc8a59f 100644
--- a/pgtype/record_test.go
+++ b/pgtype/record_test.go
@@ -102,6 +102,28 @@ func TestRecordTranscode(t *testing.T) {
 	}
 }
 
+func TestRecordWithUnknownOID(t *testing.T) {
+	conn := testutil.MustConnectPgx(t)
+	defer testutil.MustClose(t, conn)
+
+	_, err := conn.Exec(`drop type if exists floatrange;
+
+create type floatrange as range (
+  subtype = float8,
+  subtype_diff = float8mi
+);`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer conn.Exec("drop type floatrange")
+
+	var result pgtype.Record
+	err = conn.QueryRow("select row('foo'::text, floatrange(1, 10), 'bar'::text)").Scan(&result)
+	if err == nil {
+		t.Errorf("expected error but none")
+	}
+}
+
 func TestRecordAssignTo(t *testing.T) {
 	var valueSlice []pgtype.Value
 	var interfaceSlice []interface{}