diff --git a/wiki/PlaceholderExpansion.md b/wiki/PlaceholderExpansion.md
index 8daabab..59001aa 100644
--- a/wiki/PlaceholderExpansion.md
+++ b/wiki/PlaceholderExpansion.md
@@ -69,7 +69,7 @@ public class SomeExpansion extends PlaceholderExpansion {
      * <br>This is what tells PlaceholderAPI to call our onRequest 
      * method to obtain a value if a placeholder starts with our 
      * identifier.
-     * <br>This must be unique and can not contain % or _
+     * <br>The identifier has to be lowercase and can't contain _ or %
      *
      * @return The identifier in {@code %<identifier>_<value>%} as String.
      */
@@ -182,7 +182,7 @@ public class SomeExpansion extends PlaceholderExpansion {
      * <br>This is what tells PlaceholderAPI to call our onRequest 
      * method to obtain a value if a placeholder starts with our 
      * identifier.
-     * <br>This must be unique and can not contain % or _
+     * <br>The identifier has to be lowercase and can't contain _ or %
      *
      * @return The identifier in {@code %<identifier>_<value>%} as String.
      */
@@ -329,7 +329,7 @@ public class SomeExpansion extends PlaceholderExpansion {
      * <br>This is what tells PlaceholderAPI to call our onRequest 
      * method to obtain a value if a placeholder starts with our 
      * identifier.
-     * <br>This must be unique and can not contain % or _
+     * <br>The identifier has to be lowercase and can't contain _ or %
      *
      * @return The identifier in {@code %<identifier>_<value>%} as String.
      */
@@ -408,4 +408,4 @@ public class SomePlugin extends JavaPlugin{
         }
     }
 }
-```
\ No newline at end of file
+```