diff --git a/src/sim/root.cc b/src/sim/root.cc
index 57212b2..35afe70 100644
--- a/src/sim/root.cc
+++ b/src/sim/root.cc
@@ -166,7 +166,7 @@
     timeSyncEnable(en);
 }
 
-Root::Root(const RootParams &p)
+Root::Root(const RootParams &p, int)
     : SimObject(p), _enabled(false), _periodTick(p.time_sync_period),
       syncEvent([this]{ timeSync(); }, name())
 {
@@ -216,5 +216,5 @@
     FullSystem = full_system;
     FullSystemInt = full_system ? 1 : 0;
 
-    return new Root(*this);
+    return new Root(*this, 0);
 }
diff --git a/src/sim/root.hh b/src/sim/root.hh
index e2c58fd..fd3b97d 100644
--- a/src/sim/root.hh
+++ b/src/sim/root.hh
@@ -134,7 +134,9 @@
 
     PARAMS(Root);
 
-    Root(const Params &p);
+    // The int parameter is ignored, it's just so we can define a custom
+    // create() method.
+    Root(const Params &p, int);
 
     /** Schedule the timesync event at startup().
      */
diff --git a/src/systemc/core/kernel.cc b/src/systemc/core/kernel.cc
index 75e5bc9..3bb27f2 100644
--- a/src/systemc/core/kernel.cc
+++ b/src/systemc/core/kernel.cc
@@ -54,7 +54,7 @@
 sc_core::sc_status Kernel::status() { return _status; }
 void Kernel::status(sc_core::sc_status s) { _status = s; }
 
-Kernel::Kernel(const Params &params) :
+Kernel::Kernel(const Params &params, int) :
     SimObject(params), t0Event(this, false, EventBase::Default_Pri - 1)
 {
     // Install ourselves as the scheduler's event manager.
@@ -187,6 +187,6 @@
 {
     panic_if(sc_gem5::kernel,
             "Only one systemc kernel object may be defined.\n");
-    sc_gem5::kernel = new sc_gem5::Kernel(*this);
+    sc_gem5::kernel = new sc_gem5::Kernel(*this, 0);
     return sc_gem5::kernel;
 }
diff --git a/src/systemc/core/kernel.hh b/src/systemc/core/kernel.hh
index c58e0f1..9bea0db 100644
--- a/src/systemc/core/kernel.hh
+++ b/src/systemc/core/kernel.hh
@@ -46,7 +46,7 @@
 {
   public:
     typedef SystemC_KernelParams Params;
-    Kernel(const Params &params);
+    Kernel(const Params &params, int);
 
     void init() override;
     void regStats() override;