diff --git a/src/main.cpp b/src/main.cpp
index a885ad7f2..c8d0dbfca 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -68,7 +68,7 @@
 #include <boost/format.hpp>
 #include <boost/interprocess/streams/bufferstream.hpp>
 #include <boost/locale.hpp>
-
+#include <locale>
 #include <wx/clipbrd.h>
 #include <wx/msgdlg.h>
 #include <wx/stackwalk.h>
@@ -119,14 +119,29 @@ bool AegisubApp::OnInit() {
 	// be created now
 	(void)wxLog::GetActiveTarget();
 
-#ifdef __APPLE__
-	// When launched from Finder, boost::locale fails to get the correct locale
-	// and falls back to "C", which of course doesn't support unicode
-	std::locale::global(boost::locale::generator().generate("en_US.UTF-8"));
-#else
-	// Set the global locale to the utf-8 version of the current locale
-	std::locale::global(boost::locale::generator().generate(""));
-#endif
+	{
+		// Try to get the UTF-8 version of the current locale
+		auto locale = boost::locale::generator().generate("");
+
+		// Check if we actually got a UTF-8 locale
+		using codecvt = std::codecvt<wchar_t, char, std::mbstate_t>;
+		int result = std::codecvt_base::error;
+		if (std::has_facet<codecvt>(locale)) {
+			wchar_t test[] = L"\xFFFE";
+			char buff[8];
+			auto mb = std::mbstate_t();
+			const wchar_t* from_next;
+			char* to_next;
+			result = std::use_facet<codecvt>(locale).out(mb,
+				test, std::end(test), from_next,
+				buff, std::end(buff), to_next);
+		}
+
+		// If we didn't get a UTF-8 locale, force it to a known one
+		if (result != std::codecvt_base::ok)
+			locale = boost::locale::generator().generate("en_US.UTF-8");
+		std::locale::global(locale);
+	}
 
 	boost::filesystem::path::imbue(std::locale());