diff --git a/propka/__init__.py b/propka/__init__.py
index 01e59cd..8d2447f 100644
--- a/propka/__init__.py
+++ b/propka/__init__.py
@@ -17,4 +17,4 @@ __all__ = ["atom", "bonds", "calculations", "conformation_container",
            "coupled_groups", "determinant", "determinants", "group",
            "hybrid36", "iterative", "lib", "ligand_pka_values", "ligand",
            "molecular_container", "output", "parameters", "pdb", "protonate",
-           "run", "vector_algebra", "version"]
\ No newline at end of file
+           "run", "vector_algebra", "version"]