Index: trunk/psModules/src/concepts/pmConcepts.c
===================================================================
--- trunk/psModules/src/concepts/pmConcepts.c	(revision 17990)
+++ trunk/psModules/src/concepts/pmConcepts.c	(revision 18104)
@@ -519,6 +519,6 @@
         conceptRegisterF32("FPA.FOCUS", "Telescope focus", NULL, NULL, false, PM_FPA_LEVEL_FPA);
         conceptRegisterF32("FPA.AIRMASS", "Airmass at boresight", NULL, NULL, false, PM_FPA_LEVEL_FPA);
-        conceptRegisterStr("FPA.FILTERID", "Filter used (parsed, abstract name)", NULL, NULL, false, PM_FPA_LEVEL_FPA);
-        conceptRegisterStr("FPA.FILTER", "Filter used (instrument name)", p_pmConceptParse_FPA_FILTER, p_pmConceptFormat_FPA_FILTER, false, PM_FPA_LEVEL_FPA);
+        conceptRegisterStr("FPA.FILTERID", "Filter used (parsed, abstract name)", p_pmConceptParse_FPA_FILTER, p_pmConceptFormat_FPA_FILTER, false, PM_FPA_LEVEL_FPA);
+        conceptRegisterStr("FPA.FILTER", "Filter used (instrument name)", false, NULL, NULL, PM_FPA_LEVEL_FPA);
         conceptRegisterF32("FPA.POSANGLE", "Position angle of instrument", NULL, NULL, false, PM_FPA_LEVEL_FPA);
         conceptRegisterStr("FPA.RADECSYS", "Celestial coordinate system", NULL, NULL, false, PM_FPA_LEVEL_FPA);