diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 29621b3fa9bcda65b8016c47e2a9626d613523e1..ea10c572e03cae4daeb1087517576b0fbedd0139 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,6 +9,7 @@ Python 2.7:
   - maxima
   except:
   - tags
+
 Python 3.5:
   script:
   - py_version=3.5
@@ -20,6 +21,7 @@ Python 3.5:
   - maxima
   except:
   - tags
+
 Python 2.6:
   script:
   - py_version=2.6
@@ -30,6 +32,7 @@ Python 2.6:
   - python2.6
   except:
   - tags
+
 Documentation:
   script:
   - EXTRA_INSTALL="numpy"
@@ -39,3 +42,12 @@ Documentation:
   - python3.5
   only:
   - master
+
+Flake8:
+  script:
+  - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/prepare-and-run-flake8.sh
+  - ". ./prepare-and-run-flake8.sh pymbolic test"
+  tags:
+  - python3.5
+  except:
+  - tags