diff --git a/find_reduced.py b/find_reduced.py
index 1d3e245..6bfcb73 100755
--- a/find_reduced.py
+++ b/find_reduced.py
@@ -8,26 +8,22 @@ sys.path.insert(0, pym_path)
 
 from portage.versions import pkgsplit
 
-if len(sys.argv) != 4:
-    print "usage: %s pkg_mapping debian_names gentoo_deps"%sys.argv[0]
-    exit(1)
-
 deb2gen = dict()
 gen2deb = dict()
-with open(sys.argv[1]) as f:
+with open("./deb2gen_mapping.list") as f:
     for line in f:
         d, g = line.strip().split('\t')
         deb2gen[d] = g
         gen2deb[g] = d
 
-with open(sys.argv[2]) as f:
+with open("./deb_source_pkgs.list") as f:
     debian_names = [p[4:].strip() for p in f]
 
 gentoo_deps = dict()
-with open(sys.argv[3]) as f:
+with open("./reduced_gen_deps.list") as f:
     for line in f:
         p = line.strip().split()
-        gentoo_deps[pkgsplit(p[1])[0]] = p[2:]
+        gentoo_deps[pkgsplit(p[0])[0]] = p[1:]
 
 missing_deb_mappings = list()
 missing_gen_mappings = list()