diff --git a/src/plugin/Manager.cc b/src/plugin/Manager.cc
index 12c13ac3c3..39ac0568ba 100644
--- a/src/plugin/Manager.cc
+++ b/src/plugin/Manager.cc
@@ -478,9 +478,9 @@ Manager::bif_init_func_map* Manager::BifFilesInternal()
 	return bifs;
 	}
 
-Plugin* Manager::LookupPluginByPath(std::string path)
+Plugin* Manager::LookupPluginByPath(std::string_view _path)
 	{
-	path = normalize_path(path);
+	auto path = normalize_path(_path);
 
 	if ( is_file(path) )
 		path = SafeDirname(path).result;
diff --git a/src/plugin/Manager.h b/src/plugin/Manager.h
index 11fbcab74f..8127a77369 100644
--- a/src/plugin/Manager.h
+++ b/src/plugin/Manager.h
@@ -4,6 +4,8 @@
 
 #include <utility>
 #include <map>
+#include <string_view>
+
 
 #include "Plugin.h"
 #include "Component.h"
@@ -153,7 +155,7 @@ public:
 	 * path. The path can be the plugin directory itself, or any path
 	 * inside it.
 	 */
-	Plugin* LookupPluginByPath(std::string path);
+	Plugin* LookupPluginByPath(std::string_view path);
 
 	/**
 	 * Returns true if there's at least one plugin interested in a given