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-rw-r--r--src/rail_gui.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/rail_gui.cpp b/src/rail_gui.cpp
index aabcb5b3f..4fde260a6 100644
--- a/src/rail_gui.cpp
+++ b/src/rail_gui.cpp
@@ -33,6 +33,7 @@
#include "engine_base.h"
#include "vehicle_func.h"
#include "zoom_func.h"
+#include "rail_gui.h"
#include "station_map.h"
#include "tunnelbridge_map.h"
@@ -1874,7 +1875,7 @@ static void SetDefaultRailGui()
* @param p needed to be called when a setting changes
* @return success, needed for settings
*/
-bool ResetSignalVariant(int32 p = 0)
+bool ResetSignalVariant(int32 p)
{
SignalVariant new_variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);