diff --git a/source/processes/fs.cpp b/source/processes/fs.cpp
index 92f46dc..aa4ffd0 100644
--- a/source/processes/fs.cpp
+++ b/source/processes/fs.cpp
@@ -35,6 +35,8 @@
 #include <iostream>
 #include <sstream>
 
+#include <fmt/std.h>
+
 using namespace Platform::FS;
 
 namespace HLE {
diff --git a/source/processes/fs_common.cpp b/source/processes/fs_common.cpp
index 818965b..749ac1c 100644
--- a/source/processes/fs_common.cpp
+++ b/source/processes/fs_common.cpp
@@ -8,6 +8,8 @@
 
 #include <codecvt>
 
+#include <fmt/std.h>
+
 namespace HLE {
 
 CommonPath CommonPath::FromUtf16(std::u16string_view utf16_data) {