diff --git a/src/console_cmds.cpp b/src/console_cmds.cpp
--- a/src/console_cmds.cpp
+++ b/src/console_cmds.cpp
@@ -383,7 +383,7 @@ DEF_CONSOLE_CMD(ConClearBuffer)
 	}
 
 	IConsoleClearBuffer();
-	InvalidateWindow(WC_CONSOLE, 0);
+	SetWindowDirty(WC_CONSOLE, 0);
 	return true;
 }