Index: /branches/FACT++_part_filenames/src/DataWriteFits2.cc
===================================================================
--- /branches/FACT++_part_filenames/src/DataWriteFits2.cc	(revision 18733)
+++ /branches/FACT++_part_filenames/src/DataWriteFits2.cc	(revision 18734)
@@ -172,5 +172,5 @@
 {
     //Form filename, based on runid and run-type
-    fFileName = FormFileName(dynamic_pointer_cast<factofits>(fFile)?"fits.fz":"fits");
+    fFileName = FormFileName(dynamic_pointer_cast<factofits>(fFile)?"fits.fz.part":"fits.part");
 
     if (boost::filesystem::exists(fFileName))
@@ -354,4 +354,12 @@
     }
 
+    boost::filesystem::rename(
+        fFileName,
+        fFileName.substr(
+            0,
+            fFileName.size() - string(".part").size()
+        )
+    );
+
     return true;
 }