diff --git a/libc/kernel/tools/clean_header.py b/libc/kernel/tools/clean_header.py
index 92a2139..2c2d001 100755
--- a/libc/kernel/tools/clean_header.py
+++ b/libc/kernel/tools/clean_header.py
@@ -112,6 +112,7 @@
     if arch and arch in kernel_arch_token_replacements:
         blocks.replaceTokens(kernel_arch_token_replacements[arch])
 
+    blocks.removeStructs(kernel_structs_to_remove)
     blocks.optimizeMacros(macros)
     blocks.optimizeIf01()
     blocks.removeVarsAndFuncs(kernel_known_generic_statics)