1 files changed, 0 insertions, 1 deletions
diff --git a/BUILD.gn b/BUILD.gn
index 903e901046..abd189b8eb 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -757,7 +757,6 @@ test("pdfium_unittests") {
     "core/src/fxcrt/fx_basic_memmgr_unittest.cpp",
     "core/src/fxcrt/fx_basic_wstring_unittest.cpp",
     "core/src/fxcrt/fx_bidi_unittest.cpp",
-    "core/src/fxcrt/fx_extension_unittest.cpp",
     "core/src/fxcrt/fx_system_unittest.cpp",
     "third_party/base/nonstd_unique_ptr_unittest.cpp",
   ]