diff --git a/src/idl_parser.cpp b/src/idl_parser.cpp
index ca4500f9e..a87fbce4c 100644
--- a/src/idl_parser.cpp
+++ b/src/idl_parser.cpp
@@ -2280,7 +2280,8 @@ bool Parser::SupportsOptionalScalars(const flatbuffers::IDLOptions &opts) {
   static FLATBUFFERS_CONSTEXPR unsigned long supported_langs =
       IDLOptions::kRust | IDLOptions::kSwift | IDLOptions::kLobster |
       IDLOptions::kKotlin | IDLOptions::kCpp | IDLOptions::kJava |
-      IDLOptions::kCSharp | IDLOptions::kTs | IDLOptions::kJs;
+      IDLOptions::kCSharp | IDLOptions::kTs | IDLOptions::kJs |
+      IDLOptions::kBinary;
   unsigned long langs = opts.lang_to_generate;
   return (langs > 0 && langs < IDLOptions::kMAX) && !(langs & ~supported_langs);
 }