diff --git a/src/OpenTelemetry/Internal/SelfDiagnosticsConfigParser.cs b/src/OpenTelemetry/Internal/SelfDiagnosticsConfigParser.cs
index 1f23bdee779..6832ead4946 100644
--- a/src/OpenTelemetry/Internal/SelfDiagnosticsConfigParser.cs
+++ b/src/OpenTelemetry/Internal/SelfDiagnosticsConfigParser.cs
@@ -118,7 +118,6 @@ public bool TryGetConfiguration(
 
     internal static bool TryParseLogDirectory(
         string configJson,
-        [NotNullWhen(true)]
         out string logDirectory)
     {
         var logDirectoryResult = LogDirectoryRegex.Match(configJson);