diff --git a/libs/pbd/stacktrace.cc b/libs/pbd/stacktrace.cc
index b78f0e9338..021c9b7c04 100644
--- a/libs/pbd/stacktrace.cc
+++ b/libs/pbd/stacktrace.cc
@@ -99,7 +99,7 @@ PBD::stacktrace (std::ostream& out, int levels)
 std::string 
 PBD::demangle (std::string const & l)
 {
-	return string;
+	return string();
 }
 
 void