diff --git a/src/STUBS/mpi.cpp b/src/STUBS/mpi.cpp
index 53b83236ba..f938c26f21 100644
--- a/src/STUBS/mpi.cpp
+++ b/src/STUBS/mpi.cpp
@@ -300,6 +300,14 @@ int MPI_Irecv(void *buf, int count, MPI_Datatype datatype, int source, int tag,
 
 /* ---------------------------------------------------------------------- */
 
+int MPI_Iprobe(int, int, MPI_Comm, int *flag, MPI_Status *);
+{
+  if (flag) *flag = 0;
+  return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
 int MPI_Wait(MPI_Request *request, MPI_Status *status)
 {
   static int callcount = 0;
diff --git a/src/STUBS/mpi.h b/src/STUBS/mpi.h
index 71da393642..b89c098bad 100644
--- a/src/STUBS/mpi.h
+++ b/src/STUBS/mpi.h
@@ -105,6 +105,7 @@ int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int source, int tag, M
              MPI_Status *status);
 int MPI_Irecv(void *buf, int count, MPI_Datatype datatype, int source, int tag, MPI_Comm comm,
               MPI_Request *request);
+int MPI_Iprobe(int source, int tag, MPI_Comm comm, int *flag, MPI_Status *status);
 int MPI_Wait(MPI_Request *request, MPI_Status *status);
 int MPI_Waitall(int n, MPI_Request *request, MPI_Status *status);
 int MPI_Waitany(int count, MPI_Request *request, int *index, MPI_Status *status);