diff --git a/src/ConfigCat.Client.Tests/UtilsTests.cs b/src/ConfigCat.Client.Tests/UtilsTests.cs
index f1b18a63..b81e12e3 100644
--- a/src/ConfigCat.Client.Tests/UtilsTests.cs
+++ b/src/ConfigCat.Client.Tests/UtilsTests.cs
@@ -164,7 +164,7 @@ public void ModelHelper_SetEnum_Works(SettingType enumValue)
     [DataRow("abc", null, false, "abc")]
     [DataRow("abc", new object?[0], false, "abc")]
     [DataRow("abc{0}{1}{2}", new object?[] { 0.1, null, 23 }, false, "abc0.123")]
-    public void LazyString_Value_Works(string? valueOrFormat, object args, bool expectedIsValueCreated, string expectedValue)
+    public void LazyString_Value_Works(string? valueOrFormat, object? args, bool expectedIsValueCreated, string expectedValue)
     {
         var lazyString = args is false ? new LazyString(valueOrFormat) : new LazyString(valueOrFormat!, (object?[]?)args);
 
diff --git a/src/ConfigCatClient/Logging/IConfigCatLogger.cs b/src/ConfigCatClient/Logging/IConfigCatLogger.cs
index 3e8eaf7c..e3d10675 100644
--- a/src/ConfigCatClient/Logging/IConfigCatLogger.cs
+++ b/src/ConfigCatClient/Logging/IConfigCatLogger.cs
@@ -9,7 +9,7 @@ namespace ConfigCat.Client;
 /// <param name="eventId">Event identifier.</param>
 /// <param name="message">Message.</param>
 /// <param name="exception">The <see cref="Exception"/> object related to the message (if any).</param>
-/// <returns><see langword="true"/> when the event should be logged, <see langword="false"/> when it should be suppressed.</returns>
+/// <returns><see langword="true"/> when the event should be logged, <see langword="false"/> when it should be skipped.</returns>
 public delegate bool LogFilterCallback(LogLevel level, LogEventId eventId, ref FormattableLogMessage message, Exception? exception);
 
 /// <summary>