diff --git a/.travis.yml b/.travis.yml
index 7f28218bcb..603848fd24 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,9 @@
 language: python
 
+cache:
+  directories:
+    - build/commaai/panda/boardesp/esp-open-sdk/crosstool-NG
+
 addons:
   apt:
     packages: