diff --git a/hw/ivshmem.c b/hw/ivshmem.c
index afebbc3..06dce70 100644
--- a/hw/ivshmem.c
+++ b/hw/ivshmem.c
@@ -351,9 +351,10 @@
     fstat(fd, &buf);
 
     if (s->ivshmem_size > buf.st_size) {
-        fprintf(stderr, "IVSHMEM ERROR: Requested memory size greater");
-        fprintf(stderr, " than shared object size (%" PRIu64 " > %ld)\n",
-                                          s->ivshmem_size, buf.st_size);
+        fprintf(stderr,
+                "IVSHMEM ERROR: Requested memory size greater"
+                " than shared object size (%" PRIu64 " > %" PRIu64")\n",
+                s->ivshmem_size, (uint64_t)buf.st_size);
         return -1;
     } else {
         return 0;