diff --git a/etc/requirements_dev.txt b/etc/requirements_dev.txt
index 66d4e060..34460d2e 100644
--- a/etc/requirements_dev.txt
+++ b/etc/requirements_dev.txt
@@ -3,3 +3,7 @@ ipython==0.12
 # Testing
 unittest2
 nose==1.1.2
+
+# Linting
+
+flake8==1.4