diff --git a/tools/resgen/src/main.cpp b/tools/resgen/src/main.cpp
index 261865bbbc..f4e8cf27bd 100644
--- a/tools/resgen/src/main.cpp
+++ b/tools/resgen/src/main.cpp
@@ -18,6 +18,7 @@
 
 #include <getopt/getopt.h>
 
+#include <algorithm>
 #include <fstream>
 #include <iomanip>
 #include <iostream>