diff --git a/fpdfsdk/BUILD.gn b/fpdfsdk/BUILD.gn
index afdbcf0..73117e1 100644
--- a/fpdfsdk/BUILD.gn
+++ b/fpdfsdk/BUILD.gn
@@ -106,6 +106,7 @@
 
 pdfium_unittest_source_set("unittests") {
   sources = [
+    "fpdf_annot_unittest.cpp",
     "fpdf_catalog_unittest.cpp",
     "fpdf_doc_unittest.cpp",
     "fpdf_edit_unittest.cpp",
@@ -114,6 +115,7 @@
   deps = [
     ":fpdfsdk",
     "../:pdfium_public_headers",
+    "../constants",
     "../core/fpdfapi/page",
     "../core/fpdfapi/parser",
     "../core/fpdfapi/render",