diff --git a/libc/newhdrgen/yaml/wchar.yaml b/libc/newhdrgen/yaml/wchar.yaml
index 92ecdc26fbc738..e5627d14ed9beb 100644
--- a/libc/newhdrgen/yaml/wchar.yaml
+++ b/libc/newhdrgen/yaml/wchar.yaml
@@ -4,7 +4,7 @@ types:
   - type_name: size_t
   - type_name: wint_t
   - type_name: wchar_t
-  - type_name: mbstate_t.h
+  - type_name: mbstate_t
 enums: []
 objects: []
 functions: