diff --git a/dotnet/test/common/BUILD.bazel b/dotnet/test/common/BUILD.bazel
index f961def466ed2..ed2a503fecde1 100644
--- a/dotnet/test/common/BUILD.bazel
+++ b/dotnet/test/common/BUILD.bazel
@@ -7,6 +7,7 @@ SUPPORTED_BROWSERS = [
     ("firefoxnightly", "FirefoxNightly"),
     ("ie", "IE"),
     ("edge", "Edge"),
+    ("edgelegacy", "EdgeLegacy"),
     ("safari", "Safari"),
     ("safaritechpreview", "SafariTechPreview"),
 ]