diff --git a/apps/opencs/model/filter/leafnode.hpp b/apps/opencs/model/filter/leafnode.hpp
index 2b0163065..a9790d01d 100644
--- a/apps/opencs/model/filter/leafnode.hpp
+++ b/apps/opencs/model/filter/leafnode.hpp
@@ -1,5 +1,5 @@
-#ifndef CSM_FILTER_UNARIYNODE_H
-#define CSM_FILTER_UNARIYNODE_H
+#ifndef CSM_FILTER_LEAFNODE_H
+#define CSM_FILTER_LEAFNODE_H
 
 #include <memory>