diff --git a/src/signature-info.hpp b/src/signature-info.hpp
index c0a2d88..4ef60fc 100644
--- a/src/signature-info.hpp
+++ b/src/signature-info.hpp
@@ -78,6 +78,10 @@
   void
   setKeyLocator(const KeyLocator& keyLocator);
 
+  /// @brief Unset KeyLocator
+  void
+  unsetKeyLocator();
+
   /**
    * @brief Get KeyLocator
    *