diff --git a/include/boost/current_function.hpp b/include/boost/current_function.hpp
index e44e26b..6d52404 100644
--- a/include/boost/current_function.hpp
+++ b/include/boost/current_function.hpp
@@ -22,7 +22,7 @@ namespace boost
 namespace detail
 {
 
-void current_function_helper()
+inline void current_function_helper()
 {
 
 #if defined(__GNUC__)