diff --git a/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs b/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs
index 6cf4d912a7d2b3..9d1f17f6865375 100644
--- a/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs
+++ b/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs
@@ -199,7 +199,7 @@ public Span<T> GetSpan(int sizeHint = 0)
         private void CheckAndResizeBuffer(int sizeHint)
         {
             if (sizeHint < 0)
-                throw new ArgumentException(nameof(sizeHint));
+                throw new ArgumentException(null, nameof(sizeHint));
 
             if (sizeHint == 0)
             {
diff --git a/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.T.cs b/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.T.cs
index f609e38dae3440..af29d5e7bc1bbb 100644
--- a/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.T.cs
+++ b/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.T.cs
@@ -398,8 +398,8 @@ public void InvalidGetMemoryAndSpan()
         {
             var output = new ArrayBufferWriter<T>();
             WriteData(output, 2);
-            Assert.Throws<ArgumentException>(() => output.GetSpan(-1));
-            Assert.Throws<ArgumentException>(() => output.GetMemory(-1));
+            AssertExtensions.Throws<ArgumentException>("sizeHint", () => output.GetSpan(-1));
+            AssertExtensions.Throws<ArgumentException>("sizeHint", () => output.GetMemory(-1));
         }
 
         [Fact]