diff --git a/EnvelopeGenerator.Web/Models/Annotation.cs b/EnvelopeGenerator.Web/Models/Annotation.cs
index fef3cb10..fd54b68f 100644
--- a/EnvelopeGenerator.Web/Models/Annotation.cs
+++ b/EnvelopeGenerator.Web/Models/Annotation.cs
@@ -101,11 +101,6 @@ public record Annotation
 
             if (_height == default && value.Height != default)
                 _height = value.Height * HeightRatio;
-
-            ClientCoefficient = value.ClientCoefficient;
         }
     }
-
-    [JsonIgnore]
-    public double ClientCoefficient { get; set; } = 1;
 };
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