SignalBase: Fix display_name() for empty internal names

diff --git a/pv/data/signalbase.cpp b/pv/data/signalbase.cpp
index 78633de977706ac5947969f1138fb340562a170a..fde99e2b4619a3cadf2b2acd01a862759c183d3f 100644 (file)
--- a/pv/data/signalbase.cpp
+++ b/pv/data/signalbase.cpp
@@ -83,7 +83,7 @@ QString SignalBase::internal_name() const
 
 QString SignalBase::display_name() const
 {
-       if (name() != internal_name_)
+       if ((name() != internal_name_) && (!internal_name_.isEmpty()))
                return name() + " (" + internal_name_ + ")";
        else
                return name();