Index: trunk/psphot/src/psphotThreadTools.c
===================================================================
--- trunk/psphot/src/psphotThreadTools.c	(revision 21356)
+++ trunk/psphot/src/psphotThreadTools.c	(revision 21357)
@@ -93,6 +93,6 @@
 	cellGroups->data[i] = cells;
 	for (int j = 0; j < cells->n; j++) {
-	    psArray *sources = psArrayAllocEmpty (50);
-	    cells->data[j] = sources;
+	    psArray *cellSources = psArrayAllocEmpty (50);
+	    cells->data[j] = cellSources;
 	}
     }
@@ -108,7 +108,7 @@
        
 	psArray *cells = cellGroups->data[group];
-	psArray *sources = cells->data[cell];
+	psArray *cellSources = cells->data[cell];
 	
-	psArrayAdd (sources, 100, source);
+	psArrayAdd (cellSources, 100, source);
     }