diff --git a/src/header/netinet_ip/cbindgen.toml b/src/header/netinet_ip/cbindgen.toml
index fcb3293718..5a07252db7 100644
--- a/src/header/netinet_ip/cbindgen.toml
+++ b/src/header/netinet_ip/cbindgen.toml
@@ -11,10 +11,11 @@ cpp_compat = true
 
 [export]
 include = ["ip", "iphdr"]
-
-[export.rename]
-"ip" = "struct ip"
-"iphdr" = "struct iphdr"
+# NB: do NOT add [export.rename] mapping "ip" -> "struct ip". With style = "Tag"
+# cbindgen already emits `struct ip { ... }` for a struct named `ip`; renaming
+# the type to "struct ip" makes it emit `struct struct ip { ... }`, which is a
+# C syntax error ("expected '{' before 'struct'"). Both `ip` and `iphdr` are
+# defined as native Rust structs, so no rename is needed for either name.
 
 [enum]
 prefix_with_name = true
\ No newline at end of file