diff --git a/source_modules/spectran_source/src/main.cpp b/source_modules/spectran_source/src/main.cpp
index a675a286..d044ce96 100644
--- a/source_modules/spectran_source/src/main.cpp
+++ b/source_modules/spectran_source/src/main.cpp
@@ -9,6 +9,7 @@
 #include <gui/smgui.h>
 #include <utils/optionlist.h>
 #include <codecvt>
+#include <locale>
 #include <aaroniartsaapi.h>
 
 #define CONCAT(a, b) ((std::string(a) + b).c_str())
@@ -547,4 +548,4 @@ MOD_EXPORT void _DELETE_INSTANCE_(ModuleManager::Instance* instance) {
 MOD_EXPORT void _END_() {
     config.disableAutoSave();
     config.save();
-}
\ No newline at end of file
+}