diff --git a/.travis.yml b/.travis.yml
index 7245604..e7e1ea4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,12 @@
- rvm:
-   - 1.8.7
-   - 1.9.2
-   - 1.9.3
-   - rbx
-   - ree
+script: ./run_tests
+rvm:
+  - 1.8.7
+  - 1.9.2
+  - 1.9.3
+  - rbx-18mode
+  - rbx-19mode
+  - ree
+matrix:
+  allow_failures:
+    - rvm rbx-18mode
+    - rvm rbx-19mode
diff --git a/run_tests b/run_tests
new file mode 100755
index 0000000..933fc17
--- /dev/null
+++ b/run_tests
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+ruby setup.rb
+bundle exec rake test