diff --git a/builds/install/misc/firebird.conf b/builds/install/misc/firebird.conf
index 391d613afb..dd1889f4f0 100644
--- a/builds/install/misc/firebird.conf
+++ b/builds/install/misc/firebird.conf
@@ -179,7 +179,7 @@
 #
 # Type: string
 #
-#Authentication = mixed
+#Authentication = native
 
 # ----------------------------
 # Number of cached database pages
diff --git a/src/common/config/config.cpp b/src/common/config/config.cpp
index c0040e19ed..7ca5a7b31d 100644
--- a/src/common/config/config.cpp
+++ b/src/common/config/config.cpp
@@ -122,7 +122,7 @@ const ConfigImpl::ConfigEntry ConfigImpl::entries[] =
 	{TYPE_STRING,		"GCPolicy",					(ConfigValue) GCPolicyDefault},	// garbage collection policy
 	{TYPE_BOOLEAN,		"Redirection",				(ConfigValue) false},
 	{TYPE_BOOLEAN,		"OldColumnNaming",			(ConfigValue) false},	// if true use old style concatenation
-	{TYPE_STRING,		"Authentication",			(ConfigValue) AmMixed},	// use native, trusted or mixed
+	{TYPE_STRING,		"Authentication",			(ConfigValue) AmNative},	// use native, trusted or mixed
 	{TYPE_INTEGER,		"DatabaseGrowthIncrement",	(ConfigValue) 128 * 1048576},	// bytes
 	{TYPE_INTEGER,		"MaxFileSystemCache",		(ConfigValue) 65536},	// page buffers
 	{TYPE_BOOLEAN,		"RelaxedAliasChecking",		(ConfigValue) false}	// if true relax strict alias checking rules in DSQL a bit