diff --git a/.travis.yml b/.travis.yml
index 48f0b4b1a1..98073e005b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,8 +15,8 @@ rust:
   - nightly
 
 env:
-  - LLVM_VERSION=3.8 BINDGEN_FEATURES=llvm_stable
-  - LLVM_VERSION=3.9 BINDGEN_FEATURES=
+  - CARGO_TARGET_DIR=/tmp/bindgen LLVM_VERSION=3.8 BINDGEN_FEATURES=llvm_stable
+  - CARGO_TARGET_DIR=/tmp/bindgen LLVM_VERSION=3.9 BINDGEN_FEATURES=
 
 cache:
   directories: