diff --git a/buildout/instance-profiles/testrunner.cfg b/buildout/instance-profiles/testrunner.cfg
index 018c6c3314e93f48971a8a1f3655c4cd7030b7fe..e5efeaf661b2aec710d41443a59e418d3eaa1460 100644
--- a/buildout/instance-profiles/testrunner.cfg
+++ b/buildout/instance-profiles/testrunner.cfg
@@ -25,7 +25,7 @@ mysql_superpassword =
 mysql_database_name = test
 mysql_user = root
 mysql_password =
-mysql_host = ${configuration:mysql_host}
+mysql_host = 127.0.0.1
 mysql_port = ${configuration:mysql_port}
 erp5_sql_connection_string = ${:mysql_database_name}@${configuration:mysql_host}:${configuration:mysql_port} ${:mysql_user}
 
diff --git a/buildout/profiles/development.cfg b/buildout/profiles/development.cfg
index 90e88ce7aefb777979f6711852106a102b6d9f6f..f3093cca84c451850d4675674d95c4a39974d792 100644
--- a/buildout/profiles/development.cfg
+++ b/buildout/profiles/development.cfg
@@ -20,8 +20,6 @@ development_site_products =
   ${software_definition:products-cmf15}
 
 development_site_instancehome = ${buildout:var-directory}/development-site
-# Use 0.0.0.0 makes site get broken.
-mysql_host = 127.0.0.1
 
 [runUnitTest]
 <= test-runner-template
@@ -44,7 +42,7 @@ eggs =
 mysql_database_name = development_site
 mysql_user = development_user
 mysql_password = development_password
-mysql_host = ${configuration:mysql_host}
+mysql_host = 127.0.0.1
 mysql_port = ${configuration:mysql_port}
 
 # create database