diff --git a/third_party/cddlib/BUILD b/third_party/cddlib/BUILD
index ad99b15..fa2f50a 100644
--- a/third_party/cddlib/BUILD
+++ b/third_party/cddlib/BUILD
@@ -1,41 +1,43 @@
-licenses(['notice'])
+licenses(["notice"])
 
-load('//tools/build_rules:select.bzl', 'compiler_select')
+load("//tools/build_rules:select.bzl", "compiler_select")
 
 cc_library(
-  name = 'cddlib',
-  visibility = ['//visibility:public'],
-  srcs = [
-    'lib-src/cddcore.c',
-    'lib-src/cddlp.c',
-    'lib-src/cddmp.c',
-    'lib-src/cddio.c',
-    'lib-src/cddlib.c',
-    'lib-src/cddproj.c',
-    'lib-src/setoper.c',
-    'lib-src/cddmp.h',
-    'lib-src/cddtypes.h',
-    'lib-src/setoper.h',
-  ],
-  hdrs = [
-    'lib-src/cdd.h',
-  ],
-  copts = [
-    '-Wno-sometimes-uninitialized',
-    '-Wno-unused-parameter',
-    '-Wno-switch-enum',
-    '-Wno-empty-body',
-    '-Wno-sign-compare',
-    '-Wno-unused-result',
-  ] + compiler_select({
-      'gcc': ['-Wno-unused-but-set-variable'],
-      'clang': []
-  }),
+    name = "cddlib",
+    srcs = [
+        "lib-src/cddcore.c",
+        "lib-src/cddio.c",
+        "lib-src/cddlib.c",
+        "lib-src/cddlp.c",
+        "lib-src/cddmp.c",
+        "lib-src/cddmp.h",
+        "lib-src/cddproj.c",
+        "lib-src/cddtypes.h",
+        "lib-src/setoper.c",
+        "lib-src/setoper.h",
+    ],
+    hdrs = [
+        "lib-src/cdd.h",
+    ],
+    copts = [
+        "-Wno-sometimes-uninitialized",
+        "-Wno-unused-parameter",
+        "-Wno-switch-enum",
+        "-Wno-empty-body",
+        "-Wno-sign-compare",
+        "-Wno-implicit-fallthrough",
+        "-Wno-unused-result",
+    ] + compiler_select({
+        "gcc": ["-Wno-unused-but-set-variable"],
+        "clang": [],
+    }),
+    visibility = ["//visibility:public"],
 )
+
 cc_binary(
-  name = '_cddlib.so',
-  deps = [':cddlib'],
-  linkshared = True,
-  visibility = ['//visibility:public'],
-  linkstatic = False,
+    name = "_cddlib.so",
+    linkshared = True,
+    linkstatic = False,
+    visibility = ["//visibility:public"],
+    deps = [":cddlib"],
 )