diff --git a/tests/travis.sh b/tests/travis.sh
index 89a9a52..e8e0790 100755
--- a/tests/travis.sh
+++ b/tests/travis.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+php -i
+
 VERSION=`phpenv version-name`
 
 if [ "${VERSION}" = 'hhvm' ]