diff --git a/writefru.py b/writefru.py
index 97418ca..eb5d5b8 100755
--- a/writefru.py
+++ b/writefru.py
@@ -3,10 +3,18 @@
 import os
 import yaml
 from mako.template import Template
+import argparse
 
-if __name__ == '__main__':
-    script_dir = os.path.dirname(os.path.realpath(__file__))
-    with open(os.path.join(script_dir, 'writefru.yaml'), 'r') as fd:
+def main():
+    parser = argparse.ArgumentParser(
+        description="OpenPOWER FRU VPD parser and code generator")
+
+    parser.add_argument(
+        '-i', '--inventory_yaml', dest='inventory_yaml',
+        default='writefru.yaml', help='input inventory yaml file to parse')
+    args = parser.parse_args()
+
+    with open(os.path.join(script_dir, args.inventory_yaml), 'r') as fd:
         yamlDict = yaml.safe_load(fd)
 
         # Render the mako template
@@ -16,3 +24,8 @@
             fd.write(
                 t.render(
                     fruDict=yamlDict))
+
+
+if __name__ == '__main__':
+    script_dir = os.path.dirname(os.path.realpath(__file__))
+    main()