diff --git a/alib2str/src/object/ObjectToStringComposer.cpp b/alib2str/src/object/ObjectToStringComposer.cpp
index 8ade7fa43da3f419c507fdfbea7169d0c06a5979..410bbbbc63bde64ac05ec12667ad2f76c57bdf99 100644
--- a/alib2str/src/object/ObjectToStringComposer.cpp
+++ b/alib2str/src/object/ObjectToStringComposer.cpp
@@ -54,6 +54,8 @@ auto ObjectToStringComposerVoid = ObjectBaseDispatcher::RegistratorWrapper<void,
 
 auto ObjectToStringComposerAnyObjectSet = ObjectBaseDispatcher::RegistratorWrapper<void, AnyObject < std::set < Object > > >(ObjectToStringComposer::compose);
 
+auto ObjectToStringComposerAnyObjectPair = ObjectBaseDispatcher::RegistratorWrapper<void, AnyObject < std::pair < Object, Object > > >(ObjectToStringComposer::compose);
+
 auto ObjectToStringComposerAnyObjectUnsigned = ObjectBaseDispatcher::RegistratorWrapper<void, AnyObject < unsigned > >(ObjectToStringComposer::compose);
 
 auto ObjectToStringComposerObjectsPair = ObjectBaseDispatcher::RegistratorWrapper<void, container::ObjectsPair < Object, Object > >(ObjectToStringComposer::compose);