diff --git a/dita/RTC-NG/API/class_externalvideoframe.dita b/dita/RTC-NG/API/class_externalvideoframe.dita
index 6460ba4ac78..ce670948a22 100644
--- a/dita/RTC-NG/API/class_externalvideoframe.dita
+++ b/dita/RTC-NG/API/class_externalvideoframe.dita
@@ -247,7 +247,8 @@ class ExternalVideoFrame {
       this.fillAlphaBuffer,
       this.alphaStitchMode,
       this.d3d11Texture2d,
-      this.textureSliceIndex});
+      this.textureSliceIndex,
+      this.colorSpace});
 
   @JsonKey(name: 'type')
   final VideoBufferType? type;