diff --git a/config/database.yml.mysql b/config/database.yml.mysql
index db1b712d3bc..eb71d3f5fe1 100644
--- a/config/database.yml.mysql
+++ b/config/database.yml.mysql
@@ -42,3 +42,4 @@ test: &test
   password:
   # host: localhost
   # socket: /tmp/mysql.sock
+  prepared_statements: false
diff --git a/config/database.yml.postgresql b/config/database.yml.postgresql
index c517a4c0cb8..4b30982fe82 100644
--- a/config/database.yml.postgresql
+++ b/config/database.yml.postgresql
@@ -46,3 +46,4 @@ test: &test
   username: postgres
   password:
   # host: localhost
+  prepared_statements: false