1 files changed, 1 insertions, 0 deletions
diff --git a/BUILD.gn b/BUILD.gn
index d9413fd7cb..7581d73420 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -797,6 +797,7 @@ static_library("formfiller") {
 test("pdfium_unittests") {
   sources = [
     "core/src/fxcrt/fx_basic_bstring_unittest.cpp",
+    "core/src/fxcrt/fx_basic_wstring_unittest.cpp",
     "testing/fx_string_testhelpers.cpp",
     "testing/fx_string_testhelpers.h",
   ]