diff --git a/VideoNodes/FfmpegBuilderNodes/Video/FfmpegBuilderAspectRatio.cs b/VideoNodes/FfmpegBuilderNodes/Video/FfmpegBuilderAspectRatio.cs
index 9d8a8c9d..e1e9f545 100644
--- a/VideoNodes/FfmpegBuilderNodes/Video/FfmpegBuilderAspectRatio.cs
+++ b/VideoNodes/FfmpegBuilderNodes/Video/FfmpegBuilderAspectRatio.cs
@@ -31,6 +31,7 @@ public class FfmpegBuilderAspectRatio : FfmpegBuilderNode
     /// </summary>
     [Range(1, int.MaxValue)]
     [NumberInt(3)]
+    [DefaultValue(16)]
     [ConditionEquals(nameof(AspectRatio), "Custom")]
     public int CustomWidth { get; set; }
 
@@ -40,6 +41,7 @@ public class FfmpegBuilderAspectRatio : FfmpegBuilderNode
     /// </summary>
     [Range(1, int.MaxValue)]
     [NumberInt(4)]
+    [DefaultValue(9)]
     [ConditionEquals(nameof(AspectRatio), "Custom")]
     public int CustomHeight { get; set; }