diff --git a/src/systemc/core/sc_module.cc b/src/systemc/core/sc_module.cc
index 0954ce9c28..ffcff9ece6 100644
--- a/src/systemc/core/sc_module.cc
+++ b/src/systemc/core/sc_module.cc
@@ -614,6 +614,13 @@ sc_gen_unique_name(const char *)
     return "";
 }
 
+bool
+sc_hierarchical_name_exists(const char *name)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return false;
+}
+
 bool
 sc_start_of_simulation_invoked()
 {
diff --git a/src/systemc/ext/core/_using.hh b/src/systemc/ext/core/_using.hh
index 8f00949b2d..efc6341cd3 100644
--- a/src/systemc/ext/core/_using.hh
+++ b/src/systemc/ext/core/_using.hh
@@ -93,6 +93,7 @@ using sc_core::next_trigger;
 using sc_core::wait;
 using sc_core::halt;
 using sc_core::sc_gen_unique_name;
+using sc_core::sc_hierarchical_name_exists;
 using sc_core::sc_behavior;
 using sc_core::sc_channel;
 using sc_core::sc_start_of_simulation_invoked;
diff --git a/src/systemc/ext/core/sc_module.hh b/src/systemc/ext/core/sc_module.hh
index 78919613e1..82b48ab161 100644
--- a/src/systemc/ext/core/sc_module.hh
+++ b/src/systemc/ext/core/sc_module.hh
@@ -272,6 +272,9 @@ void at_negedge(const sc_signal_in_if<sc_dt::sc_logic> &);
 
 const char *sc_gen_unique_name(const char *);
 
+// Nonstandard
+bool sc_hierarchical_name_exists(const char *name);
+
 typedef sc_module sc_behavior;
 typedef sc_module sc_channel;