diff --git a/arch/sparc64/openbios.c b/arch/sparc64/openbios.c
index 59a6d57..62cc843 100644
--- a/arch/sparc64/openbios.c
+++ b/arch/sparc64/openbios.c
@@ -672,7 +672,8 @@ void arch_nvram_get(char *data)
     cmdline_size = size;
     boot_device = nv_info.boot_devices[0];
 
-    printk("kernel addr %llx size %llx\n", kernel_image, kernel_size);
+    if (kernel_size)
+        printk("kernel addr %llx size %llx\n", kernel_image, kernel_size);
     if (size)
         printk("kernel cmdline %s\n", obio_cmdline);