diff --git a/Tools/autotest/param_metadata/param_parse.py b/Tools/autotest/param_metadata/param_parse.py
index c7ca69714b..5056cc094e 100755
--- a/Tools/autotest/param_metadata/param_parse.py
+++ b/Tools/autotest/param_metadata/param_parse.py
@@ -173,8 +173,11 @@ for library in libraries:
 
     debug("Processed %u documented parameters" % len(library.params))
 
-libraries = alllibs
+# sort libraries by name
+alllibs = sorted(alllibs, key=lambda x : x.name)
 
+libraries = alllibs
+    
 def is_number(numberString):
     try:
         float(numberString)