diff --git a/src/systemc/core/sc_time.cc b/src/systemc/core/sc_time.cc
index 5d6b634..ebc637b 100644
--- a/src/systemc/core/sc_time.cc
+++ b/src/systemc/core/sc_time.cc
@@ -48,6 +48,16 @@
     warn("%s not implemented.\n", __PRETTY_FUNCTION__);
 }
 
+sc_time::sc_time(double, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_time::sc_time(sc_dt::uint64, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
 sc_time &
 sc_time::operator = (const sc_time &)
 {
diff --git a/src/systemc/ext/core/sc_time.hh b/src/systemc/ext/core/sc_time.hh
index d52ed81..ff71d70 100644
--- a/src/systemc/ext/core/sc_time.hh
+++ b/src/systemc/ext/core/sc_time.hh
@@ -55,6 +55,10 @@
     sc_time(double, sc_time_unit);
     sc_time(const sc_time &);
 
+    // Deprecated
+    sc_time(double, bool);
+    sc_time(sc_dt::uint64, bool);
+
     sc_time &operator = (const sc_time &);
 
     sc_dt::uint64 value() const;