diff --git a/aegisub/src/dialog_version_check.cpp b/aegisub/src/dialog_version_check.cpp
index 18af23dcf..3fbea7fc6 100644
--- a/aegisub/src/dialog_version_check.cpp
+++ b/aegisub/src/dialog_version_check.cpp
@@ -81,6 +81,10 @@
 
 #include <libaegisub/exception.h>
 
+#ifdef __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+
 /* *** Public API is implemented here *** */
 
 // Allocate global lock mutex declared in header
@@ -305,6 +309,19 @@ static wxString GetSystemLanguage()
 
 	return res;
 }
+#elif __APPLE__
+static wxString GetSystemLanguage()
+{
+	CFLocaleRef locale = CFLocaleCopyCurrent();
+	CFStringRef localeName = (CFStringRef)CFLocaleGetValue(locale, kCFLocaleIdentifier);
+
+	char buf[128];
+	CFStringGetCString(localeName, buf, sizeof buf, kCFStringEncodingUTF8);
+	CFRelease(locale);
+
+	return wxString::FromUTF8(buf);
+
+}
 #else
 static wxString GetSystemLanguage()
 {