diff --git a/eco-api/src/main/java/com/willfp/eco/core/Handler.java b/eco-api/src/main/java/com/willfp/eco/core/Handler.java
index 982659d4..49450d86 100644
--- a/eco-api/src/main/java/com/willfp/eco/core/Handler.java
+++ b/eco-api/src/main/java/com/willfp/eco/core/Handler.java
@@ -230,5 +230,6 @@ public interface Handler {
      *
      * @return The handler.
      */
+    @NotNull
     PlayerProfileHandler getPlayerProfileHandler();
 }