diff --git a/go/native/GoGlue.h b/go/native/GoGlue.h
index da7d8893..5cd58d7a 100644
--- a/go/native/GoGlue.h
+++ b/go/native/GoGlue.h
@@ -40,7 +40,7 @@ extern "C" {
 
 /****************************************************************************/
 
-const char *ZT_PLATFORM_DEFAULT_HOMEPATH;
+extern const char *ZT_PLATFORM_DEFAULT_HOMEPATH;
 
 /****************************************************************************/