diff --git a/etc/requirements_dev.txt b/etc/requirements_dev.txt
index 6e1caa27..9cc613c5 100644
--- a/etc/requirements_dev.txt
+++ b/etc/requirements_dev.txt
@@ -23,7 +23,7 @@ mistune==0.5.1
 # Example scripts that are run during unit tests use the following:
 
 # Required by tornado
-backports.ssl-match-hostname==3.4.0.2;python_version<'3.0'
+"backports.ssl-match-hostname==3.4.0.2;python_version<'3.0'"
 certifi==2015.4.28
 
 # tornado and pyparsing are required by matplotlib