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-rw-r--r--src/settings.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/settings.cpp b/src/settings.cpp
index 312045a59..fa30c8a7a 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -752,7 +752,7 @@ static bool TrainAccelerationModelChanged(int32 p1)
static bool DragSignalsDensityChanged(int32)
{
- SetWindowDirty(FindWindowById(WC_BUILD_SIGNAL, 0));
+ InvalidateWindow(WC_BUILD_SIGNAL, 0);
return true;
}