diff --git a/src/config.c b/src/config.c
index 3aee605f8f..e0982e42ae 100644
--- a/src/config.c
+++ b/src/config.c
@@ -169,7 +169,7 @@ config_enum_definition _dateFormatEnum[] = {
 config_property_definition _generalDefinitions[] = {
 	{ offsetof(general_configuration, always_show_gridlines),			"always_show_gridlines",		CONFIG_VALUE_TYPE_BOOLEAN,		false,							NULL					},
 	{ offsetof(general_configuration, autosave_frequency),				"autosave",						CONFIG_VALUE_TYPE_UINT8,		AUTOSAVE_EVERY_5MINUTES,		NULL					},
-	{ offsetof(general_configuration, confirmation_prompt),				"confirmation_prompt",			CONFIG_VALUE_TYPE_UINT8,		0,								NULL					},
+	{ offsetof(general_configuration, confirmation_prompt),				"confirmation_prompt",			CONFIG_VALUE_TYPE_BOOLEAN,		false,							NULL					},
 	{ offsetof(general_configuration, construction_marker_colour),		"construction_marker_colour",	CONFIG_VALUE_TYPE_UINT8,		false,							NULL					},
 	{ offsetof(general_configuration, currency_format),					"currency_format",				CONFIG_VALUE_TYPE_UINT8,		CURRENCY_POUNDS,				_currencyEnum			},
 	{ offsetof(general_configuration, edge_scrolling),					"edge_scrolling",				CONFIG_VALUE_TYPE_BOOLEAN,		true,							NULL					},