diff --git a/dotnet/src/webdriver/BUILD.bazel b/dotnet/src/webdriver/BUILD.bazel
index 63ff2ae3c6e30..61ae06262b81f 100644
--- a/dotnet/src/webdriver/BUILD.bazel
+++ b/dotnet/src/webdriver/BUILD.bazel
@@ -13,6 +13,7 @@ load(
     srcs = glob([
         "*.cs",
         "Chrome/*.cs",
+        "Chromium/*.cs",
         "Edge/*.cs",
         "Firefox/**/*.cs",
         "Html5/*.cs",