diff --git a/buildingspy/development/merger.py b/buildingspy/development/merger.py
index c023d6d2..f4d9c3ec 100755
--- a/buildingspy/development/merger.py
+++ b/buildingspy/development/merger.py
@@ -47,7 +47,7 @@ def isValidLibrary(lib_home):
 
         # --------------------------
         # Class variables
-        self._src_library_name = "Annex60"
+        self._src_library_name = os.path.basename(annex60_dir)
         self._annex60_home=annex60_dir
         self._target_home=dest_dir
         # Library name, such as Buildings
@@ -207,10 +207,8 @@ def merge(self):
                     if desFil.endswith(".mo") or desFil.endswith(".mos"):
                         copiedFiles.append(desFil)
                         self._copy_mo_and_mos(srcFil, desFil)
-                    # Only copy reference results if no such file exists.
-                    # If a reference file already exists, then don't change it.
-                    # This requires to replace
-                    # the name of the library in names of the result file
+                    # Only copy reference results if it corresponds
+                    # to a package that is not excluded
                     elif desFil.startswith(ref_res):
                         dir_name = os.path.dirname(desFil)
                         base_name = os.path.basename(desFil)
@@ -224,9 +222,8 @@ def merge(self):
                             new_file = os.path.join(dir_name,
                                                     base_name.replace(self._src_library_name,
                                                                       self._new_library_name))
-                            if not os.path.isfile(new_file):
-                                copiedFiles.append(new_file)
-                                shutil.copy2(srcFil, new_file)
+                            copiedFiles.append(new_file)
+                            shutil.copy2(srcFil, new_file)
 
                     # Copy all other files. This may be images, C-source, libraries etc.
                     else: