diff --git a/.travis.yml b/.travis.yml
index b5524c2e..7062a5a4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,6 @@ php:
 before_install:
   - phpenv config-add data/infra/travis-php/memcached.ini
   - phpenv config-add data/infra/travis-php/apcu.ini
-  - phpenv config-add data/infra/travis-php/pdo_sqlite.ini
   - phpenv config-add data/infra/travis-php/sqlite.ini
 
 before_script:
diff --git a/data/infra/travis-php/pdo_sqlite.ini b/data/infra/travis-php/pdo_sqlite.ini
deleted file mode 100644
index 5a50864a..00000000
--- a/data/infra/travis-php/pdo_sqlite.ini
+++ /dev/null
@@ -1 +0,0 @@
-extension="pdo_sqlite.so"