diff --git a/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ActivatorUtilities.cs b/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ActivatorUtilities.cs
index e8eae2d2e9eee6..6c689751a26067 100644
--- a/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ActivatorUtilities.cs
+++ b/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ActivatorUtilities.cs
@@ -705,7 +705,7 @@ public bool IsService(IServiceProviderIsService serviceProviderIsService, int pa
             }
         }
 
-        private readonly struct ConstructorMatcher
+        private readonly ref struct ConstructorMatcher
         {
             private readonly ConstructorInfoEx _constructor;
             private readonly object?[] _parameterValues;