diff --git a/src/ai/ai_info.cpp b/src/ai/ai_info.cpp
index 4c217680c3..9cb6ad6534 100644
--- a/src/ai/ai_info.cpp
+++ b/src/ai/ai_info.cpp
@@ -24,7 +24,8 @@ AIConfigItem _start_date_config = {
 	AI::START_NEXT_HARD,
 	AI::START_NEXT_DEVIATION,
 	30,
-	AICONFIG_NONE
+	AICONFIG_NONE,
+	NULL
 };
 
 AIFileInfo::~AIFileInfo()
diff --git a/src/sortlist_type.h b/src/sortlist_type.h
index 25b0e3a2ed..8bcfd7aada 100644
--- a/src/sortlist_type.h
+++ b/src/sortlist_type.h
@@ -313,9 +313,9 @@ public:
 	 * Filter the list.
 	 *
 	 * @param decide The function to decide about an item
-	 * @param filter_data The data for filter on
+	 * @param filter_data Additional data passed to the filter function
 	 * @return true if the list has been altered by filtering
-	 * */
+	 */
 	bool Filter(FilterFunction *decide, const F *filter_data)
 	{
 		/* Do not filter if the filter bit is not set */
@@ -346,7 +346,7 @@ public:
 	/**
 	 * Filter the data with the currently selected filter.
 	 *
-	 * @param filter_data The data for filer on
+	 * @param filter_data Additional data passed to the filter function.
 	 * @return true if the list has been altered by filtering
 	 */
 	bool Filter(const F *filter_data)