diff --git a/client/SDL/dialogs/res/convert_res_to_c.cpp b/client/SDL/dialogs/res/convert_res_to_c.cpp
index c3254e295..4470b615c 100644
--- a/client/SDL/dialogs/res/convert_res_to_c.cpp
+++ b/client/SDL/dialogs/res/convert_res_to_c.cpp
@@ -19,6 +19,7 @@
 #include <string>
 #include <fstream>
 #include <algorithm>
+#include <iomanip>
 #include <iostream>
 #if __has_include(<filesystem>)
 #include <filesystem>