diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index cf4cac2d..8d611895 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -118,7 +118,7 @@ inline void drop_all()
 }
 
 // stop any running threads started by spdlog and clean registry loggers
-void shutdown()
+inline void shutdown()
 {
 	details::registry::instance().shutdown();
 }