diff --git a/rdoff/rdflib.c b/rdoff/rdflib.c
index d363b3e5..ab03e0b8 100644
--- a/rdoff/rdflib.c
+++ b/rdoff/rdflib.c
@@ -181,6 +181,8 @@ int main(int argc, char **argv)
         nasm_write(sig_modname, strlen(sig_modname) + 1, fp);
         nasm_write(rdl_signature, strlen(rdl_signature), fp);
 	t = time(NULL);
+        l = sizeof(t);
+        fwriteint32_t(l, fp);
         fwriteint32_t(t, fp);
         fclose(fp);
         break;