diff --git a/build_modeller.py b/build_modeller.py
index 1fbba11..e7c4c74 100755
--- a/build_modeller.py
+++ b/build_modeller.py
@@ -91,9 +91,9 @@ class PDBModeler:
 
         log.verbose()
 
-        env2 = Environ()
-        env2.io.atom_files_directory = ['.']
-        loop_model = LoopModel(env2,
+        env3 = Environ()
+        env3.io.atom_files_directory = ['.']
+        loop_model = LoopModel(env3,
                                alnfile=(self.outdir / 'alignment.ali').as_posix(),
                                knowns=self.structure,
                                sequence=self.sequence,