1 files changed, 1 insertions, 1 deletions
diff --git a/testpar/t_mpi.c b/testpar/t_mpi.c
index 157a09f..41acf7a 100644
--- a/testpar/t_mpi.c
+++ b/testpar/t_mpi.c
@@ -460,7 +460,7 @@ static int test_mpio_1wMr(char *filename, int special_request) {
     /* show the hostname so that we can tell where the processes are running */
     if (VERBOSE_DEF) {
 #ifdef H5_HAVE_GETHOSTNAME
-            if(HDgethostname(hostname, sizeof(host_name)) < 0) {
+            if(HDgethostname(hostname, sizeof(hostname)) < 0) {
                 printf("gethostname failed\n");
                 hostname[0] = '\0';
             }