1 files changed, 1 insertions, 1 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ExternalException.cs b/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ExternalException.cs
index 160fe301e..ab5a84c08 100644
--- a/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ExternalException.cs
+++ b/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ExternalException.cs
@@ -68,7 +68,7 @@ namespace System.Runtime.InteropServices
 
             string s = className + " (0x" + HResult.ToString("X8", CultureInfo.InvariantCulture) + ")";
 
-            if (!(String.IsNullOrEmpty(message)))
+            if (!(string.IsNullOrEmpty(message)))
             {
                 s = s + ": " + message;
             }