diff --git a/build/fuchsia/sdk.gni b/build/fuchsia/sdk.gni
index 895424d801..d8f6131fe7 100644
--- a/build/fuchsia/sdk.gni
+++ b/build/fuchsia/sdk.gni
@@ -117,6 +117,8 @@ template("_fuchsia_fidl_library") {
       rebase_path("$target_gen_dir/$library_name_slashes/cpp/fidl"),
       "--output-c-tables",
       rebase_path("$target_gen_dir/$library_name_slashes/c/tables.c"),
+      "--output-c-header",
+      rebase_path("$target_gen_dir/$library_name_slashes/c/fidl.h"),
     ]
   }