diff --git a/mediapipe/framework/tool/proto_util_lite.cc b/mediapipe/framework/tool/proto_util_lite.cc
index a810ce129..b338e9a5b 100644
--- a/mediapipe/framework/tool/proto_util_lite.cc
+++ b/mediapipe/framework/tool/proto_util_lite.cc
@@ -479,7 +479,7 @@ absl::Status ProtoUtilLite::WriteValue(const FieldData& value,
       WireFormatLite::WriteUInt64NoTag(value.uint64_value(), &out);
       break;
     case WireFormatLite::TYPE_DOUBLE:
-      WireFormatLite::WriteDoubleNoTag(value.uint64_value(), &out);
+      WireFormatLite::WriteDoubleNoTag(value.double_value(), &out);
       break;
     case WireFormatLite::TYPE_FLOAT:
       WireFormatLite::WriteFloatNoTag(value.float_value(), &out);