diff --git a/.travis.yml b/.travis.yml
index cb98356c4289..39787104e42c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,6 +33,7 @@ env:
 python:
   - 3.5
   - 3.6
+  - 3.8-dev
 matrix:
   include:
     - python: 3.7
diff --git a/numpy/core/tests/test_deprecations.py b/numpy/core/tests/test_deprecations.py
index 6d71fcbd658e..58ebea024ba7 100644
--- a/numpy/core/tests/test_deprecations.py
+++ b/numpy/core/tests/test_deprecations.py
@@ -101,7 +101,7 @@ def assert_deprecated(self, function, num=1, ignore_others=False,
                         (self.warning_cls.__name__, warning.category))
         if num is not None and num_found != num:
             msg = "%i warnings found but %i expected." % (len(self.log), num)
-            lst = [str(w.category) for w in self.log]
+            lst = [str(w) for w in self.log]
             raise AssertionError("\n".join([msg] + lst))
 
         with warnings.catch_warnings():
diff --git a/tools/travis-before-install.sh b/tools/travis-before-install.sh
index b1c1f2ca1c37..448273db022e 100755
--- a/tools/travis-before-install.sh
+++ b/tools/travis-before-install.sh
@@ -36,6 +36,6 @@ fi
 
 
 pip install --upgrade pip setuptools
-pip install nose pytz cython pytest
+pip install pytz cython pytest
 if [ -n "$USE_ASV" ]; then pip install asv; fi
 popd