diff --git a/xml/System.Diagnostics/ConditionalAttribute.xml b/xml/System.Diagnostics/ConditionalAttribute.xml
index e189bff6ab0..6880214e6c1 100644
--- a/xml/System.Diagnostics/ConditionalAttribute.xml
+++ b/xml/System.Diagnostics/ConditionalAttribute.xml
@@ -86,7 +86,7 @@
     #Const DEBUG=False  
     ```  
   
- Compilers that comply with the Common Language Specification (CLS) are permitted to ignore <xref:System.Diagnostics.ConditionalAttribute>. The C#, Visual Basic, and C++ compilers support <xref:System.Diagnostics.ConditionalAttribute>; the JScript compiler does not support the attribute.  
+ Compilers that comply with the Common Language Specification (CLS) are permitted to ignore <xref:System.Diagnostics.ConditionalAttribute>. The C#, F#, Visual Basic, and C++ compilers support <xref:System.Diagnostics.ConditionalAttribute>; the JScript compiler does not support the attribute.  
   
 > [!NOTE]
 >  In Visual Basic, the `AddressOf` operator is not affected by this attribute. For example, `Call CType(AddressOf delegate, Action)` always invokes `delegate`, although `Call delegate()` might not.