diff --git a/src/Parser.cpp b/src/Parser.cpp
index 8e1fa88ff..fcfb4641f 100644
--- a/src/Parser.cpp
+++ b/src/Parser.cpp
@@ -1165,6 +1165,7 @@ void Parser::findIdSequence ()
       }
 
       (*i)->unTag ("?");
+      (*i)->removeAllBranches ();
       (*i)->tag ("ID");
 
       Tree* branch = (*i)->addBranch (new Tree ("argSeq"));