diff --git a/04_ABAP_Object_Orientation.md b/04_ABAP_Object_Orientation.md
index 14b7f08..ed315aa 100644
--- a/04_ABAP_Object_Orientation.md
+++ b/04_ABAP_Object_Orientation.md
@@ -72,7 +72,7 @@ You can either create local or global classes:
 <table>
 <tr>
     <td><a href="https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenlocal_class_glosry.htm">Local classes</a></td>
-    <td><ul><li>can be defined within an [ABAP program](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenabap_program_glosry.htm "Glossary Entry")</li><li>can only be used in the ABAP program in which the class is defined</li></ul></td>
+    <td><ul><li>can be defined within an <a href="[https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenlocal_class_glosry.htm](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenabap_program_glosry.htm)">ABAP program</a></li><li>can only be used in the ABAP program in which the class is defined</li></ul></td>
 </tr>
 <tr>
     <td><a href="https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenglobal_class_glosry.htm">Global