diff --git a/src/libraries/System.Private.CoreLib/src/System/Diagnostics/StackTrace.cs b/src/libraries/System.Private.CoreLib/src/System/Diagnostics/StackTrace.cs
index c86c3be39fe76e..81b0e58b12dc57 100644
--- a/src/libraries/System.Private.CoreLib/src/System/Diagnostics/StackTrace.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/Diagnostics/StackTrace.cs
@@ -418,7 +418,7 @@ private static bool TryResolveStateMachineMethod(ref MethodBase method, out Type
 
             foreach (MethodInfo candidateMethod in methods)
             {
-                IEnumerable<StateMachineAttribute>? attributes = candidateMethod.GetCustomAttributes<StateMachineAttribute>(inherit: false);
+                StateMachineAttribute[]? attributes = (StateMachineAttribute[])Attribute.GetCustomAttributes(candidateMethod, typeof(StateMachineAttribute), inherit: false);
                 if (attributes == null)
                 {
                     continue;