diff --git a/Scripts/scop_pdb.py b/Scripts/scop_pdb.py
index b141aff09ac..b8997538cf6 100755
--- a/Scripts/scop_pdb.py
+++ b/Scripts/scop_pdb.py
@@ -13,6 +13,9 @@
 
 from Bio.SCOP import *
 
+def xusage() :
+    print("Hello world")
+
 def usage() :
     print \
 """Extract a SCOP domain's ATOM and HETATOM records from the relevant PDB file.
@@ -88,6 +91,9 @@ def main():
         if o in ("-h", "--help","--usage"):
             usage()
             sys.exit()
+        if o in ("-x", "--xxx"):
+            xusage()
+            sys.exit()
         elif o in ("-o", "--output"):
             output = a
         elif o in ("-i", "--input"):