diff --git a/src/coreComponents/fileIO/python/PyHistoryCollection.cpp b/src/coreComponents/fileIO/python/PyHistoryCollection.cpp
index 5f65e62966a..7bd2a08ea4d 100644
--- a/src/coreComponents/fileIO/python/PyHistoryCollection.cpp
+++ b/src/coreComponents/fileIO/python/PyHistoryCollection.cpp
@@ -90,15 +90,15 @@ static PyObject * collect( PyHistoryCollection * self, PyObject * args )
 
   double time;
   double dt;
+  int cycleNumber;
 
-  if( !PyArg_ParseTuple( args, "dd", &time, &dt ) )
+  if( !PyArg_ParseTuple( args, "ddi", &time, &dt, &cycleNumber ) )
   {
     return nullptr;
   }
 
   geos::DomainPartition & domain = self->group->getGroupByPath< DomainPartition >( "/Problem/domain" );
 
-  int cycleNumber = int(round( time/dt ));
   try
   {
     self->group->execute( time, dt, cycleNumber, 0, 0, domain );
diff --git a/src/coreComponents/fileIO/python/PyHistoryOutput.cpp b/src/coreComponents/fileIO/python/PyHistoryOutput.cpp
index 5da919b192a..e7fff852ef5 100644
--- a/src/coreComponents/fileIO/python/PyHistoryOutput.cpp
+++ b/src/coreComponents/fileIO/python/PyHistoryOutput.cpp
@@ -88,15 +88,15 @@ static PyObject * output( PyHistoryOutput * self, PyObject * args )
 
   double time;
   double dt;
+  int cycleNumber;
 
-  if( !PyArg_ParseTuple( args, "dd", &time, &dt ) )
+  if( !PyArg_ParseTuple( args, "ddi", &time, &dt, &cycleNumber ) )
   {
     return nullptr;
   }
 
   geos::DomainPartition & domain = self->group->getGroupByPath< DomainPartition >( "/Problem/domain" );
 
-  int cycleNumber = int(round( time/dt ));
   try
   {
     self->group->cleanup( time, cycleNumber, 0, 0, domain );
diff --git a/src/coreComponents/fileIO/python/PyVTKOutput.cpp b/src/coreComponents/fileIO/python/PyVTKOutput.cpp
index 496fe116348..89cc2c4026f 100644
--- a/src/coreComponents/fileIO/python/PyVTKOutput.cpp
+++ b/src/coreComponents/fileIO/python/PyVTKOutput.cpp
@@ -86,15 +86,15 @@ static PyObject * output( PyVTKOutput * self, PyObject * args )
 
   double time;
   double dt;
+  int cycleNumber;
 
-  if( !PyArg_ParseTuple( args, "dd", &time, &dt ) )
+  if( !PyArg_ParseTuple( args, "ddi", &time, &dt, &cycleNumber ) )
   {
     return nullptr;
   }
 
   geos::DomainPartition & domain = self->group->getGroupByPath< DomainPartition >( "/Problem/domain" );
 
-  int cycleNumber = int(round( time/dt ));
   try
   {
     self->group->execute( time, dt, cycleNumber, 0, 0, domain );
diff --git a/src/coreComponents/physicsSolvers/python/PySolver.cpp b/src/coreComponents/physicsSolvers/python/PySolver.cpp
index befc482dc15..d8c7ada2ae2 100644
--- a/src/coreComponents/physicsSolvers/python/PySolver.cpp
+++ b/src/coreComponents/physicsSolvers/python/PySolver.cpp
@@ -85,15 +85,15 @@ static PyObject * execute( PySolver * self, PyObject * args )
 
   double time;
   double dt;
-  if( !PyArg_ParseTuple( args, "dd", &time, &dt ) )
+  int cycleNumber;
+
+  if( !PyArg_ParseTuple( args, "ddi", &time, &dt, &cycleNumber ) )
   {
     return nullptr;
   }
 
   geos::DomainPartition & domain = self->group->getGroupByPath< DomainPartition >( "/Problem/domain" );
 
-  int cycleNumber = int(round( time/dt ));
-
   self->group->execute( time, dt, cycleNumber, 0, 0, domain );
 
   Py_RETURN_NONE;