--- a/src/sampleconf/recoll.conf.in
+++ b/src/sampleconf/recoll.conf.in
@@ -50,6 +50,15 @@
# default is to use the above values.
# daemloglevel = 3
# daemlogfilename = /dev/null
+
+# Run directory for the indexing process. The filters sometimes leave
+# garbage in the current directory, so it makes sense to have recollindex
+# chdir to some garbage bin. 3 possible values:
+# - (literal) tmp : go to temp dir as set by env (RECOLL_TMPDIR else
+# TMPDIR else /tmp)
+# - Empty: stay were started
+# - Absolute path value: go there.
+idxrundir = tmp
# Decide if we store character case and diacritics in the index. If we do,
# searches sensitive to case and diacritics can be performed, but the index