diff --git a/Shared/Core/AiUtils.cs b/Shared/Core/AiUtils.cs
index 52da9a620..4a394a930 100644
--- a/Shared/Core/AiUtils.cs
+++ b/Shared/Core/AiUtils.cs
@@ -45,7 +45,7 @@ namespace BS.Shared.Core
 
 			if (!success)
 			{
-				error = $"Windowsize exceeded: {tokens_count}/{max_context_size} ({percentage}%>{maximum}%)";
+				error = $"Windowsize exceeded: {tokens_count}/{max_context_size} ({percentage:0}%>{maximum}%)";
 			}
 
 			return success;