Index: trunk/psModules/src/objects/pmSourceIO.c
===================================================================
--- trunk/psModules/src/objects/pmSourceIO.c	(revision 25383)
+++ trunk/psModules/src/objects/pmSourceIO.c	(revision 25415)
@@ -983,6 +983,11 @@
 
             if (!pmReadoutReadDetEff(file->fits, readout, deteffname)) {
+#if 0
                 psError(PS_ERR_IO, false, "Unable to read detection efficiency");
                 return false;
+#else
+                // No great loss
+                psErrorClear();
+#endif
             }
         }