diff --git a/requirements.txt b/requirements.txt
index 32d67bf9d..69bd183b2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 -e git+https://github.com/mitmproxy/netlib.git#egg=netlib
--e . [dev]
\ No newline at end of file
+-e .[dev]
\ No newline at end of file