diff --git a/sys/rump/fs/rumptest/rumptest.c b/sys/rump/fs/rumptest/rumptest.c
index 44bf9df59808..b19e3f8e32e3 100644
--- a/sys/rump/fs/rumptest/rumptest.c
+++ b/sys/rump/fs/rumptest/rumptest.c
@@ -2,9 +2,15 @@
 
 #include <rump/rump.h>
 
+#include <stdio.h>
+#include <string.h>
+
 int
 main()
 {
+	int rv;
 
-	rump_init();
+	rv = rump_init();
+	printf("rump init returned: %d (%s)\n", rv,
+	    rv == 0 ? "success" : strerror(rv));
 }