diff --git a/savevm.c b/savevm.c
index d6da050..55a2763 100644
--- a/savevm.c
+++ b/savevm.c
@@ -959,13 +959,27 @@
 
 static int get_unused_buffer(QEMUFile *f, void *pv, size_t size)
 {
-    qemu_fseek(f, size, SEEK_CUR);
-    return 0;
+    uint8_t buf[1024];
+    int block_len;
+
+    while (size > 0) {
+        block_len = MIN(sizeof(buf), size);
+        size -= block_len;
+        qemu_get_buffer(f, buf, block_len);
+    }
+   return 0;
 }
 
 static void put_unused_buffer(QEMUFile *f, void *pv, size_t size)
 {
-    qemu_fseek(f, size, SEEK_CUR);
+    static const uint8_t buf[1024];
+    int block_len;
+
+    while (size > 0) {
+        block_len = MIN(sizeof(buf), size);
+        size -= block_len;
+        qemu_put_buffer(f, buf, block_len);
+    }
 }
 
 const VMStateInfo vmstate_info_unused_buffer = {