diff --git a/src/openrct2/core/FileWatcher.cpp b/src/openrct2/core/FileWatcher.cpp
index 439be15859..3ce0309c8c 100644
--- a/src/openrct2/core/FileWatcher.cpp
+++ b/src/openrct2/core/FileWatcher.cpp
@@ -7,6 +7,7 @@
  * OpenRCT2 is licensed under the GNU General Public License version 3.
  *****************************************************************************/
 
+#include <algorithm>
 #include <array>
 #include <cstdio>
 #include <stdexcept>