diff --git a/plugins/map_matching.hpp b/plugins/map_matching.hpp
index b4f65ad1e..d3fcccac3 100644
--- a/plugins/map_matching.hpp
+++ b/plugins/map_matching.hpp
@@ -25,8 +25,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 */
 
-#ifndef MAP_MATCHING_HPP
-#define MAP_MATCHING_HPP
+#ifndef MAP_MATCHING_PLUGIN_HPP
+#define MAP_MATCHING_PLUGIN_HPP
 
 #include "plugin_base.hpp"