Index: trunk/pswarp/src/pswarpDefineSkycell.c
===================================================================
--- trunk/pswarp/src/pswarpDefineSkycell.c	(revision 18914)
+++ trunk/pswarp/src/pswarpDefineSkycell.c	(revision 19041)
@@ -64,10 +64,11 @@
     // XXX EAM : this operation should be defined as a pmConfig function (pmConfigCopy?)
     skyConfig = pmConfigAlloc(0, NULL);
-    skyConfig->user = psMemIncrRefCounter (config->user);
+    skyConfig->user = psMemIncrRefCounter(config->user);
+    skyConfig->system = psMemIncrRefCounter(config->system);
 
     psFree (skyConfig->files);
-    skyConfig->files = psMemIncrRefCounter (config->files);
+    skyConfig->files = psMemIncrRefCounter(config->files);
     psFree (skyConfig->arguments);
-    skyConfig->arguments = psMemIncrRefCounter (config->arguments);
+    skyConfig->arguments = psMemIncrRefCounter(config->arguments);
 
     format = pmConfigCameraFormatFromHeader (NULL, NULL, skyConfig, phu, false);