diff --git a/utils/gn/secondary/llvm/unittests/ADT/BUILD.gn b/utils/gn/secondary/llvm/unittests/ADT/BUILD.gn
index 6545a4410d9..dbd9e63efb6 100644
--- a/utils/gn/secondary/llvm/unittests/ADT/BUILD.gn
+++ b/utils/gn/secondary/llvm/unittests/ADT/BUILD.gn
@@ -25,6 +25,7 @@ unittest("ADTTests") {
     "DenseSetTest.cpp",
     "DepthFirstIteratorTest.cpp",
     "DirectedGraphTest.cpp",
+    "EnumeratedArrayTest.cpp",
     "EquivalenceClassesTest.cpp",
     "FallibleIteratorTest.cpp",
     "FoldingSet.cpp",