diff --git a/doc/src/Flagging.rst b/doc/src/Flagging.rst
index d9d77b7e67b8ecbea3bad1960fa5b0a69853f75b..abf67d21b0c46e42a12dec1fb8e21afa6a766a89 100644
--- a/doc/src/Flagging.rst
+++ b/doc/src/Flagging.rst
@@ -42,6 +42,7 @@ Extraction flags: :param:`FLAGS`
   64, "a memory overflow occurred during deblending"
   128, "a memory overflow occurred during extraction"
 
+.. _imaflags_iso_def:
 
 External flags: :param:`IMAFLAGS_ISO`
 -------------------------------------
diff --git a/doc/src/Param.rst b/doc/src/Param.rst
index 2a2637e5724e88547af312bda22cf8b16cd2df4c..a1ce15c0825a4f004591d55bf4b390a830122ce8 100644
--- a/doc/src/Param.rst
+++ b/doc/src/Param.rst
@@ -105,6 +105,8 @@ of their meaning.
   _`EXT_NUMBER`, ..., FITS extension number
   _`FLAGS`, ..., :ref:`Source extraction flags <flags_def>`
   _`FLAGS_WEIGHT`, ..., :ref:`Weighting flags <flags_weight_def>`
+  _`IMAFLAGS_ISO`, ..., :ref:`External flags combined within the isophotal footprint <imaflags_iso_def>`
+  _`NIMAFLAGS_ISO`, ..., :ref:`Number of combined external flags <imaflags_iso_def>`
   _`FLUX_ISO`, count, :ref:`Isophotal flux <flux_iso_def>`
   _`FLUXERR_ISO`, count, :ref:`RMS error estimate for the isophotal flux <flux_iso_def>`
   _`MAG_ISO`, magnitude, :ref:`Isophotal magnitude <flux_iso_def>`