diff --git a/theXORitself.py b/theXORitself.py
index 6cfd5c9..845e683 100644
--- a/theXORitself.py
+++ b/theXORitself.py
@@ -3,6 +3,10 @@
 import sys, getopt, os 
 
 def main(argv):
+    comp1 = ''
+    comp2 = ''
+    comp3 = ''  
+    
     try:
         opts, args = getopt.getopt(argv,"hc1:c2:c3:",["comp1=","comp2=","comp3="])
     except getopt.GetoptError: