diff --git a/.travis.yml b/.travis.yml
index c6a4d3f7..f87cfe4f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,12 @@ dist: precise
 python:
   - "3.6"
 
+matrix:
+  include:
+    - python: 3.7
+      dist: xenial
+      sudo: true
+
 before_install:
   - export TZ=Europe/Brussels
   - if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then wget http://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh; else wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh; fi
diff --git a/pattern/text/__init__.py b/pattern/text/__init__.py
index aa77af0b..5e4c1108 100644
--- a/pattern/text/__init__.py
+++ b/pattern/text/__init__.py
@@ -606,7 +606,7 @@ def _read(path, encoding="utf-8", comment=";;;"):
             if not line or (comment and line.startswith(comment)):
                 continue
             yield line
-    raise StopIteration
+    return
 
 
 class Lexicon(lazydict):