diff --git a/CAL/CalibrationCommon/lib/datacontainers/holography_measurementset.py b/CAL/CalibrationCommon/lib/datacontainers/holography_measurementset.py
index d09b414f067687a7c4dbc93f0d2e80bd12b3fc6e..5a0e0cd50dc657b6283b2f6a35b30c86ca752977 100644
--- a/CAL/CalibrationCommon/lib/datacontainers/holography_measurementset.py
+++ b/CAL/CalibrationCommon/lib/datacontainers/holography_measurementset.py
@@ -19,7 +19,7 @@ class CASA_POLARIZATION_INDEX(IntEnum):
     Y = 1
 
 
-ms_name_pattern = r'L(?P<sas_id>\d{6})_SB(?P<sub_band_id>\d{3})_uv\.MS'
+ms_name_pattern = r'L(?P<sas_id>\d{6})(_SAP\d{3})*_SB(?P<sub_band_id>\d{3})_uv\.MS'
 
 
 def __mjd_to_astropy_time(mjd_time_seconds):