diff --git a/boring-sys/Cargo.toml b/boring-sys/Cargo.toml
index 5cd8e214..ea91e6dc 100644
--- a/boring-sys/Cargo.toml
+++ b/boring-sys/Cargo.toml
@@ -18,6 +18,7 @@ include = [
     "/*.toml",
     "/LICENSE-MIT",
     "/cmake/*.cmake",
+    "/deps/boringssl/src/util/32-bit-toolchain.cmake",
     # boringssl (non-FIPS)
     "/deps/boringssl/src/util/32-bit-toolchain.cmake",
     "/deps/boringssl/**/*.[chS]",