diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h
index 2253a455ba..77b32327c2 100644
--- a/include/asterisk/lock.h
+++ b/include/asterisk/lock.h
@@ -667,7 +667,6 @@ static inline int ast_cond_timedwait(ast_cond_t *cond, ast_mutex_t *t, const str
 #define pthread_cond_timedwait use_ast_cond_timedwait_instead_of_pthread_cond_timedwait
 
 #define AST_MUTEX_DEFINE_STATIC(mutex) __AST_MUTEX_DEFINE(static,mutex)
-#define AST_MUTEX_DEFINE_EXPORTED(mutex) __AST_MUTEX_DEFINE(/**/,mutex)
 
 #define AST_MUTEX_INITIALIZER __use_AST_MUTEX_DEFINE_STATIC_rather_than_AST_MUTEX_INITIALIZER__