diff --git a/stand/auth/psildap.py b/stand/auth/psildap.py
index af5e7f4..ba1ad94 100644
--- a/stand/auth/psildap.py
+++ b/stand/auth/psildap.py
@@ -77,8 +77,8 @@ def repack_pgroups(entries):
         attrs = entry.entry_attributes_as_dict
         beamlines = extract_matches(attrs["memberOf"], BEAMLINE_PATTERN)
         beamline = ensure_single(beamlines, "beamlines")
-        cn = ensure_single(attrs["cn"], "CNs")
-        res[cn] = beamline
+        pgroup = ensure_single(attrs["cn"], "pgroup CNs")
+        res[pgroup] = beamline
     return res