Index: trunk/ppMerge/src/ppMergeData.c
===================================================================
--- trunk/ppMerge/src/ppMergeData.c	(revision 7759)
+++ trunk/ppMerge/src/ppMergeData.c	(revision 8405)
@@ -20,4 +20,9 @@
     if (data->outFile) {
         psFitsClose(data->outFile);
+        data->outFile = NULL;
+    }
+    if (data->statsFile) {
+        fclose(data->statsFile);
+        data->statsFile = NULL;
     }
 }
@@ -34,4 +39,5 @@
     data->out = NULL;
     data->outFile = NULL;
+    data->statsFile = NULL;
 
     return data;