Index: trunk/psphot/src/psphotExtendedSourceAnalysis.c
===================================================================
--- trunk/psphot/src/psphotExtendedSourceAnalysis.c	(revision 32633)
+++ trunk/psphot/src/psphotExtendedSourceAnalysis.c	(revision 33089)
@@ -134,5 +134,5 @@
 
         // wait for the threads to finish and manage results
-        if (!psThreadPoolWait (false)) {
+        if (!psThreadPoolWait (false, true)) {
             psError(PS_ERR_UNKNOWN, false, "Unable to guess model.");
 	    psFree(AnalysisRegion);