diff --git a/src/librustc_interface/tests.rs b/src/librustc_interface/tests.rs
index 3b89ceff447fe..0394821d09569 100644
--- a/src/librustc_interface/tests.rs
+++ b/src/librustc_interface/tests.rs
@@ -300,30 +300,30 @@ fn test_native_libs_tracking_hash_different_values() {
 
     // Reference
     v1.libs = vec![
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("b"), None, Some(NativeLibKind::Framework)),
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("b"), None, NativeLibKind::Framework),
+        (String::from("c"), None, NativeLibKind::Unspecified),
     ];
 
     // Change label
     v2.libs = vec![
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("X"), None, Some(NativeLibKind::Framework)),
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("X"), None, NativeLibKind::Framework),
+        (String::from("c"), None, NativeLibKind::Unspecified),
     ];
 
     // Change kind
     v3.libs = vec![
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("b"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("b"), None, NativeLibKind::StaticBundle),
+        (String::from("c"), None, NativeLibKind::Unspecified),
     ];
 
     // Change new-name
     v4.libs = vec![
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("b"), Some(String::from("X")), Some(NativeLibKind::Framework)),
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("b"), Some(String::from("X")), NativeLibKind::Framework),
+        (String::from("c"), None, NativeLibKind::Unspecified),
     ];
 
     assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
@@ -345,21 +345,21 @@ fn test_native_libs_tracking_hash_different_order() {
 
     // Reference
     v1.libs = vec![
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("b"), None, Some(NativeLibKind::Framework)),
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("b"), None, NativeLibKind::Framework),
+        (String::from("c"), None, NativeLibKind::Unspecified),
     ];
 
     v2.libs = vec![
-        (String::from("b"), None, Some(NativeLibKind::Framework)),
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
+        (String::from("b"), None, NativeLibKind::Framework),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("c"), None, NativeLibKind::Unspecified),
     ];
 
     v3.libs = vec![
-        (String::from("c"), None, Some(NativeLibKind::Unspecified)),
-        (String::from("a"), None, Some(NativeLibKind::StaticBundle)),
-        (String::from("b"), None, Some(NativeLibKind::Framework)),
+        (String::from("c"), None, NativeLibKind::Unspecified),
+        (String::from("a"), None, NativeLibKind::StaticBundle),
+        (String::from("b"), None, NativeLibKind::Framework),
     ];
 
     assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
diff --git a/src/librustc_metadata/native_libs.rs b/src/librustc_metadata/native_libs.rs
index 68ad987065710..fc4235a3eda09 100644
--- a/src/librustc_metadata/native_libs.rs
+++ b/src/librustc_metadata/native_libs.rs
@@ -241,8 +241,8 @@ impl Collector<'tcx> {
                 .drain_filter(|lib| {
                     if let Some(lib_name) = lib.name {
                         if lib_name.as_str() == *name {
-                            if let Some(k) = kind {
-                                lib.kind = k;
+                            if kind != NativeLibKind::Unspecified {
+                                lib.kind = kind;
                             }
                             if let &Some(ref new_name) = new_name {
                                 lib.name = Some(Symbol::intern(new_name));
@@ -258,7 +258,7 @@ impl Collector<'tcx> {
                 let new_name = new_name.as_ref().map(|s| &**s); // &Option<String> -> Option<&str>
                 let lib = NativeLib {
                     name: Some(Symbol::intern(new_name.unwrap_or(name))),
-                    kind: if let Some(k) = kind { k } else { NativeLibKind::Unspecified },
+                    kind,
                     cfg: None,
                     foreign_module: None,
                     wasm_import_module: None,
diff --git a/src/librustc_session/config.rs b/src/librustc_session/config.rs
index 1aac639f9236e..5bdd7b67723b8 100644
--- a/src/librustc_session/config.rs
+++ b/src/librustc_session/config.rs
@@ -1452,7 +1452,7 @@ fn select_debuginfo(
 fn parse_libs(
     matches: &getopts::Matches,
     error_format: ErrorOutputType,
-) -> Vec<(String, Option<String>, Option<NativeLibKind>)> {
+) -> Vec<(String, Option<String>, NativeLibKind)> {
     matches
         .opt_strs("l")
         .into_iter()
@@ -1462,11 +1462,11 @@ fn parse_libs(
             let mut parts = s.splitn(2, '=');
             let kind = parts.next().unwrap();
             let (name, kind) = match (parts.next(), kind) {
-                (None, name) => (name, None),
-                (Some(name), "dylib") => (name, Some(NativeLibKind::Dylib)),
-                (Some(name), "framework") => (name, Some(NativeLibKind::Framework)),
-                (Some(name), "static") => (name, Some(NativeLibKind::StaticBundle)),
-                (Some(name), "static-nobundle") => (name, Some(NativeLibKind::StaticNoBundle)),
+                (None, name) => (name, NativeLibKind::Unspecified),
+                (Some(name), "dylib") => (name, NativeLibKind::Dylib),
+                (Some(name), "framework") => (name, NativeLibKind::Framework),
+                (Some(name), "static") => (name, NativeLibKind::StaticBundle),
+                (Some(name), "static-nobundle") => (name, NativeLibKind::StaticNoBundle),
                 (_, s) => {
                     early_error(
                         error_format,
@@ -1478,7 +1478,7 @@ fn parse_libs(
                     );
                 }
             };
-            if kind == Some(NativeLibKind::StaticNoBundle) && !nightly_options::is_nightly_build() {
+            if kind == NativeLibKind::StaticNoBundle && !nightly_options::is_nightly_build() {
                 early_error(
                     error_format,
                     "the library kind 'static-nobundle' is only \
@@ -2058,7 +2058,6 @@ crate mod dep_tracking {
     impl_dep_tracking_hash_via_hash!(Option<RelroLevel>);
     impl_dep_tracking_hash_via_hash!(Option<lint::Level>);
     impl_dep_tracking_hash_via_hash!(Option<PathBuf>);
-    impl_dep_tracking_hash_via_hash!(Option<NativeLibKind>);
     impl_dep_tracking_hash_via_hash!(CrateType);
     impl_dep_tracking_hash_via_hash!(MergeFunctions);
     impl_dep_tracking_hash_via_hash!(PanicStrategy);
@@ -2084,7 +2083,7 @@ crate mod dep_tracking {
     impl_dep_tracking_hash_for_sortable_vec_of!(PathBuf);
     impl_dep_tracking_hash_for_sortable_vec_of!(CrateType);
     impl_dep_tracking_hash_for_sortable_vec_of!((String, lint::Level));
-    impl_dep_tracking_hash_for_sortable_vec_of!((String, Option<String>, Option<NativeLibKind>));
+    impl_dep_tracking_hash_for_sortable_vec_of!((String, Option<String>, NativeLibKind));
     impl_dep_tracking_hash_for_sortable_vec_of!((String, u64));
     impl_dep_tracking_hash_for_sortable_vec_of!(Sanitizer);
 
diff --git a/src/librustc_session/options.rs b/src/librustc_session/options.rs
index 5ac5cf9f6bc6f..3b6c21e7de008 100644
--- a/src/librustc_session/options.rs
+++ b/src/librustc_session/options.rs
@@ -93,7 +93,7 @@ top_level_options!(
         describe_lints: bool [UNTRACKED],
         output_types: OutputTypes [TRACKED],
         search_paths: Vec<SearchPath> [UNTRACKED],
-        libs: Vec<(String, Option<String>, Option<NativeLibKind>)> [TRACKED],
+        libs: Vec<(String, Option<String>, NativeLibKind)> [TRACKED],
         maybe_sysroot: Option<PathBuf> [UNTRACKED],
 
         target_triple: TargetTriple [TRACKED],