diff --git a/ompi/datatype/dt_args.c b/ompi/datatype/dt_args.c
index e2761516b0..9822365e2a 100644
--- a/ompi/datatype/dt_args.c
+++ b/ompi/datatype/dt_args.c
@@ -230,7 +230,7 @@ int32_t ompi_ddt_print_args( const ompi_datatype_t* pData )
             if( temp->flags & DT_FLAG_PREDEFINED ) {
                 printf( "%s ", temp->name );
             } else {
-                printf( "%p ", temp );
+                printf( "%p ", (void*)temp );
             }
         }
         printf( "\n" );