diff --git a/.travis.yml b/.travis.yml
index e129d6eda..5c70bd4be 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 before_install:
     - sudo apt-get update -qq
-    - sudo apt-get install -y libwxgtk3.0-dev
+    - sudo apt-get install -y libwxgtk3.0-dev libgtk2.0-dev
     - git show -s --format="wxT(\"<a href=\\\"http://github.com/audacity/audacity/commit/%H\\\">%h</a> of %cd\")"
     - git show -s --format="wxT(\"<a href=\\\"http://github.com/audacity/audacity/commit/%H\\\">%h</a> of %cd\")" > ./src/RevisionIdent.h
 language: cpp