diff --git a/linux-user/strace.c b/linux-user/strace.c
index ef5eed943250339023ee3c1a5b9aad638d2e20e3..c9d252719a9a2a5821f33daa2d087d305989b024 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1507,6 +1507,11 @@ print_file_mode(abi_long mode, int last)
     const char *sep = "";
     const struct flags *m;
 
+    if (mode == 0) {
+        qemu_log("000%s", get_comma(last));
+        return;
+    }
+
     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
         if ((m->f_value & mode) == m->f_value) {
             qemu_log("%s%s", m->f_string, sep);