diff --git a/llvm/utils/gn/secondary/llvm/unittests/DebugInfo/DWARF/BUILD.gn b/llvm/utils/gn/secondary/llvm/unittests/DebugInfo/DWARF/BUILD.gn
index 38ec5269f4b1..a7c1d6ac8a54 100644
--- a/llvm/utils/gn/secondary/llvm/unittests/DebugInfo/DWARF/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/unittests/DebugInfo/DWARF/BUILD.gn
@@ -21,6 +21,7 @@ unittest("DebugInfoDWARFTests") {
     "DWARFDieManualExtractTest.cpp",
     "DWARFDieTest.cpp",
     "DWARFExpressionCompactPrinterTest.cpp",
+    "DWARFExpressionCopyBytesTest.cpp",
     "DWARFFormValueTest.cpp",
     "DWARFListTableTest.cpp",
     "DWARFLocationExpressionTest.cpp",