diff --git a/satpy/etc/readers/avhrr_l1b_gaclac.yaml b/satpy/etc/readers/avhrr_l1b_gaclac.yaml
index a547815072..056923783d 100644
--- a/satpy/etc/readers/avhrr_l1b_gaclac.yaml
+++ b/satpy/etc/readers/avhrr_l1b_gaclac.yaml
@@ -186,3 +186,4 @@ file_types:
         - '{creation_site:3s}.{transfer_mode:4s}.{platform_id:2s}.D{start_time:%y%j.S%H%M}.E{end_time:%H%M}.B{orbit_number:05d}{end_orbit_last_digits:02d}.{station:2s}'
         - '{subscription_prefix:10d}.{creation_site:3s}.{transfer_mode:4s}.{platform_id:2s}.D{start_time:%y%j.S%H%M}.E{end_time:%H%M}.B{orbit_number:05d}{end_orbit_last_digits:02d}.{station:2s}'
         - '{platform_id:3s}_RPRO_AVH_L1B_1P_{start_time:%Y%m%dT%H%M%S}_{end_time:%Y%m%dT%H%M%S}_{orbit_number:06d}/image.l1b'
+        - '{platform_id:3s}_{start_time:%Y%m%d%H%M}{end_time:%S}.l1b'