1 files changed, 1 insertions, 0 deletions
diff --git a/BUILD.gn b/BUILD.gn
index 062cfdcef4..da23f0b442 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -295,6 +295,7 @@ visibility = [
 
 source_set("constants") {
   sources = [
+    "constants/form_flags.h",
     "constants/page_object.h",
     "constants/stream_dict_common.h",
     "constants/transparency.h",