diff --git a/src/newgrf_gui.cpp b/src/newgrf_gui.cpp
--- a/src/newgrf_gui.cpp
+++ b/src/newgrf_gui.cpp
@@ -1481,7 +1481,7 @@ private:
 		}
 
 		this->avails.Filter(this->string_filter);
-		this->avails.Compact();
+		this->avails.shrink_to_fit();
 		this->avails.RebuildDone();
 		this->avails.Sort();