diff --git a/ompi/mpi/c/alloc_mem.c b/ompi/mpi/c/alloc_mem.c
index 7a9cc69af1..dbcef2acad 100644
--- a/ompi/mpi/c/alloc_mem.c
+++ b/ompi/mpi/c/alloc_mem.c
@@ -68,7 +68,7 @@ int MPI_Alloc_mem(MPI_Aint size, MPI_Info info, void *baseptr)
 
     OPAL_CR_ENTER_LIBRARY();
 
-    *((void **) baseptr) = mca_mpool_base_alloc((size_t) size, info);
+    *((void **) baseptr) = mca_mpool_base_alloc((size_t) size, (struct opal_info_t*)info);
     OPAL_CR_EXIT_LIBRARY();
     if (NULL == *((void **) baseptr)) {
         return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_NO_MEM,