diff --git a/scripts/fix_xml_ids.py b/scripts/fix_xml_ids.py
new file mode 100644
index 0000000..7b0ceea
--- /dev/null
+++ b/scripts/fix_xml_ids.py
@@ -0,0 +1,21 @@
+import argparse
+import codecs
+import re
+
+arg_parser = argparse.ArgumentParser(description='Fix invalid XML ids.')
+arg_parser.add_argument('-infile', type=str, help='Input file')
+arg_parser.add_argument('-outfile', type=str, help='Output file')
+arguments = arg_parser.parse_args()
+input_file_name = arguments.infile
+output_file_name = arguments.outfile
+
+output_file = codecs.open(output_file_name, 'w')
+input_file = codecs.open(input_file_name, 'r')
+
+for line in input_file:
+    line = re.sub('xml:id="(?=\d)','xml:id="s', line)
+    line = line.replace('#', '#s')
+    output_file.write(line)
+    
+input_file.close()
+output_file.close()