diff --git a/indexer/editable_map_object.cpp b/indexer/editable_map_object.cpp
index cd6b2fc001..2360cce6cc 100644
--- a/indexer/editable_map_object.cpp
+++ b/indexer/editable_map_object.cpp
@@ -762,7 +762,7 @@ bool EditableMapObject::ValidateName(string const & name)
     return true;
 
   if (strings::IsASCIIString(name))
-    return regex_match(name, regex(R"(^[ A-Za-z0-9.,?!@#$%&()\-:;"'`]+$)"));
+    return regex_match(name, regex(R"(^[ A-Za-z0-9.,?!@#$%&()\-\+:;"'`]+$)"));
 
   std::wstring_convert<std::codecvt_utf8<char32_t>, char32_t> converter;