diff --git a/developer-doc/mdTemplate.txt b/developer-doc/mdTemplate.txt
index 0c22d01f15d0dd93c783abb1921b328c31efd51f..21f90bd08e80e6169fde856544f428f43f555ac6 100644
--- a/developer-doc/mdTemplate.txt
+++ b/developer-doc/mdTemplate.txt
@@ -185,7 +185,8 @@ plumed_cmd(plumedmain,"setMDEnergyUnits",&energyUnits);        // Pass a pointer
 plumed_cmd(plumedmain,"setMDLengthUnits",&lengthUnits);        // Pass a pointer to the conversion factor between the length unit used in your code and nm 
 plumed_cmd(plumedmain,"setMDTimeUnits",&timeUnits);            // Pass a pointer to the conversion factor between the time unit used in your code and ps
 plumed_cmd(plumedmain,"setPlumedDat",&plumedInput);            // Pass the name of the plumed input file from the md code to plumed
-plumed_cmd(plumedmain,"setMPIComm",&MPI_COMM_WORLD);           // Pass a pointer to the MPI communicator to plumed?
+plumed_cmd(plumedmain,"setMPIComm",&MPI_COMM_WORLD);           // Pass a pointer to the MPI communicator to plumed
+// notice that from fortran the command "setMPIFComm" should be used instead
 plumed_cmd(plumedmain,"setNatoms",&natoms);                    // Pass a pointer to the number of atoms in the system to plumed
 plumed_cmd(plumedmain,"setMDEngine","gromacs");                // Pass the name of your md engine to plumed (now it is just a label) 
 plumed_cmd(plumedmain,"setLog",fplog);                         // Pass the file on which to write out the plumed log (if the file is already open)
diff --git a/src/core/PlumedMain.cpp b/src/core/PlumedMain.cpp
index b19ca1a23946d55ebda674a700c4f441f5e67464..6e1e0f10e07ccf5ce54a19db96346c26e1332ca5 100644
--- a/src/core/PlumedMain.cpp
+++ b/src/core/PlumedMain.cpp
@@ -293,6 +293,7 @@ void PlumedMain::cmd(const std::string & word,void*val){
        CHECK_NOTINIT(initialized,word);
        CHECK_NULL(val,word);
        stopFlag=static_cast<int*>(val);
+// other commands that should be used after initialization:
   } else if(word=="getExchangesFlag"){
        CHECK_INIT(initialized,word);
        CHECK_NULL(val,word);