diff --git a/Cargo.lock b/Cargo.lock
index 0958343507..0ae1dc41ac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5,7 +5,7 @@ dependencies = [
  "aster 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cexpr 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "clang-sys 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clang-sys 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.19.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "diff 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -60,7 +60,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "clang-sys"
-version = "0.12.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -429,7 +429,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
 "checksum cexpr 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "393a5f0088efbe41f9d1fcd062f24e83c278608420e62109feb2c8abee07de7d"
 "checksum cfg-if 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de1e760d7b6535af4241fca8bd8adf68e2e7edacc6b29f5d399050c5e48cf88c"
-"checksum clang-sys 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "822ea22bbbef9f5934e9477860545fb0311a1759e43a276de42e2856c605aa2b"
+"checksum clang-sys 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4f98f0715ff67f27ca6a2f8f0ffc2a56f8edbc7acd57489c29eadc3a15c4eafe"
 "checksum clap 2.19.3 (registry+https://github.com/rust-lang/crates.io-index)" = "95b78f3fe0fc94c13c731714363260e04b557a637166f33a4570d3189d642374"
 "checksum diff 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e48977eec6d3b7707462c2dc2e1363ad91b5dd822cf942537ccdc2085dc87587"
 "checksum dtoa 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0dd841b58510c9618291ffa448da2e4e0f699d984d436122372f446dae62263d"
diff --git a/Cargo.toml b/Cargo.toml
index a5472af31d..c732337ee3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,7 +39,7 @@ quasi_codegen = "0.29"
 [dependencies]
 cexpr = "0.2"
 cfg-if = "0.1.0"
-clang-sys = { version = "0.12", features = ["runtime", "clang_3_9"] }
+clang-sys = { version = "0.14", features = ["runtime", "clang_3_9"] }
 lazy_static = "0.2.1"
 rustc-serialize = "0.3.19"
 syntex_syntax = "0.54"
diff --git a/src/clang.rs b/src/clang.rs
index e62ff74c74..613e08e849 100644
--- a/src/clang.rs
+++ b/src/clang.rs
@@ -662,10 +662,6 @@ pub enum LayoutError {
 impl ::std::convert::From<i32> for LayoutError {
     fn from(val: i32) -> Self {
         use self::LayoutError::*;
-        let val = match CXTypeLayoutError::from_raw(val) {
-            Some(val) => val,
-            None => return Unknown,
-        };
 
         match val {
             CXTypeLayoutError_Invalid => Invalid,