diff --git a/.travis.yml b/.travis.yml
index 4c9006c12a..a1dc8e007f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,8 @@ addons:
   apt:
     packages:
       - oracle-java8-installer
+  ssh_known_hosts:
+    - web.sourceforge.net
 language: java
 jdk: oraclejdk8
 before_install: