diff --git a/.travis.yml b/.travis.yml
index 1c7119dd..91a12da9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,12 +7,14 @@ addons:
   apt:
     packages:
       - gcc-multilib
+#     - valgrind
 env:
   - CFLAGS="-m32"
   - CFLAGS="-m64"
 script:
   - perl --version
   - make test
+# - make test-contrib TEST_RUNNER="valgrind -q --leak-check=full --dsymutil=yes --error-exitcode=1 bin/picrin"
   - make clean
   - make debug
   - make test