diff --git a/src/libs/Recombee/Generated/Recombee.OptionsSupport.g.cs b/src/libs/Recombee/Generated/Recombee.OptionsSupport.g.cs
index d3480c0..203cad9 100644
--- a/src/libs/Recombee/Generated/Recombee.OptionsSupport.g.cs
+++ b/src/libs/Recombee/Generated/Recombee.OptionsSupport.g.cs
@@ -381,7 +381,7 @@ internal static string AppendQueryParameters(
             }
 
             var builder = new global::System.Text.StringBuilder(path ?? string.Empty);
-            var hasQuery = builder.ToString().Contains("?", global::System.StringComparison.Ordinal);
+            var hasQuery = builder.ToString().IndexOf("?", global::System.StringComparison.Ordinal) >= 0;
             AppendParameters(builder, clientParameters, ref hasQuery);
             AppendParameters(builder, requestParameters, ref hasQuery);
             return builder.ToString();