diff --git a/swiftmpiproxies.c b/swiftmpiproxies.c
index fa24f3756893d29c504395768681466e543afec7..3b5ba4d060aa365999c7b2f9b21f2e3c6e1b034b 100644
--- a/swiftmpiproxies.c
+++ b/swiftmpiproxies.c
@@ -355,7 +355,7 @@ int main(int argc, char *argv[]) {
         /* This call will succeed, if the receive buffer has not been
          * updated. */
         if (datacheck_test(myrank, pcells_size[pid], pcells_in[pid])) {
-          message("Received data is not modified");
+          message("Received data buffer has not been modified");
           fflush(stdout);
           error("Failed");
         } else {