diff --git a/Vostok.Tracing.Hercules/Readers/AnnotationReaders/HerculesSpecificAnnotationsReader.cs b/Vostok.Tracing.Hercules/Readers/AnnotationReaders/HerculesSpecificAnnotationsReader.cs
index 2cd6e17..a2f3a24 100644
--- a/Vostok.Tracing.Hercules/Readers/AnnotationReaders/HerculesSpecificAnnotationsReader.cs
+++ b/Vostok.Tracing.Hercules/Readers/AnnotationReaders/HerculesSpecificAnnotationsReader.cs
@@ -18,18 +18,25 @@ public HerculesSpecificAnnotationsReader(Dictionary<string, object> annotations)
             annotations[key] = value;
         return this;
     }
-    
+
     public new IHerculesTagsBuilder AddValue(string key, string value)
     {
         if (annotations.ContainsKey(key))
             annotations[key] = value;
         return this;
     }
-    
+
     public new IHerculesTagsBuilder AddValue(string key, long value)
     {
         if (annotations.ContainsKey(key))
             annotations[key] = value;
         return this;
     }
+
+    public new IHerculesTagsBuilder AddValue(string key, double value)
+    {
+        if (annotations.ContainsKey(key))
+            annotations[key] = value;
+        return this;
+    }
 }
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