1 files changed, 2 insertions, 0 deletions
diff --git a/BUILD.gn b/BUILD.gn
index 06c410182d..f577986f8e 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -230,6 +230,8 @@ static_library("pdfium") {
 static_library("test_support") {
   testonly = true
   sources = [
+    "testing/fx_string_testhelpers.cpp",
+    "testing/fx_string_testhelpers.h",
     "testing/test_support.cpp",
     "testing/test_support.h",
     "testing/utils/path_service.cpp",