diff --git a/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx b/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx
index 5957640bac1066..c5c6a8603e8dff 100644
--- a/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx
+++ b/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx
@@ -1343,7 +1343,7 @@
     <value>The specified object must not be an instance of a generic type.</value>
   </data>
   <data name="Argument_NeedNonGenericType" xml:space="preserve">
-    <value>The specified Type must not be a generic type definition.</value>
+    <value>The specified Type must not be a generic type.</value>
   </data>
   <data name="Argument_NeedStructWithNoRefs" xml:space="preserve">
     <value>The specified Type must be a struct containing no references.</value>