diff --git a/libc/tools/generate_notice.py b/libc/tools/generate_notice.py
index 69d2d00..505708a 100755
--- a/libc/tools/generate_notice.py
+++ b/libc/tools/generate_notice.py
@@ -45,6 +45,14 @@
     return True
 
 
+def is_auto_generated(content):
+    if "Generated by gensyscalls.py" in content or "generated by genserv.py" in content:
+        return True
+    if "This header was automatically generated from a Linux kernel header" in content:
+        return True
+    return False
+
+
 def is_copyright_end(line: str, first_line_was_hash: bool) -> bool:
     endings = [
         " $FreeBSD: ",
@@ -145,6 +153,10 @@
         warn_verbose("ignoring short file %s" % path)
         return
 
+    if is_auto_generated(content):
+        warn_verbose("ignoring auto-generated file %s" % path)
+        return
+
     if not "Copyright" in content:
         if "public domain" in content.lower():
             warn_verbose("ignoring public domain file %s" % path)