diff --git a/invui/src/main/java/xyz/xenondevs/invui/window/AbstractWindow.java b/invui/src/main/java/xyz/xenondevs/invui/window/AbstractWindow.java
index 1c36c27..1bc5beb 100644
--- a/invui/src/main/java/xyz/xenondevs/invui/window/AbstractWindow.java
+++ b/invui/src/main/java/xyz/xenondevs/invui/window/AbstractWindow.java
@@ -371,17 +371,17 @@ public abstract class AbstractWindow implements Window, GuiParent {
     }
     
     @Override
-    public void addOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandlers) {
+    public void addOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandler) {
         if (this.outsideClickHandlers == null)
             this.outsideClickHandlers = new ArrayList<>();
         
-        this.outsideClickHandlers.add(outsideClickHandlers);
+        this.outsideClickHandlers.add(outsideClickHandler);
     }
     
     @Override
-    public void removeOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandlers) {
+    public void removeOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandler) {
         if (this.outsideClickHandlers != null)
-            this.outsideClickHandlers.remove(outsideClickHandlers);
+            this.outsideClickHandlers.remove(outsideClickHandler);
     }
     
     @Override
diff --git a/invui/src/main/java/xyz/xenondevs/invui/window/Window.java b/invui/src/main/java/xyz/xenondevs/invui/window/Window.java
index e468b0e..f66a14b 100644
--- a/invui/src/main/java/xyz/xenondevs/invui/window/Window.java
+++ b/invui/src/main/java/xyz/xenondevs/invui/window/Window.java
@@ -220,14 +220,14 @@ public interface Window {
      *
      * @param outsideClickHandlers The outside click handler to add
      */
-    void addOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandlers);
+    void addOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandler);
     
     /**
      * Removes an outside click handler that has been added previously.
      *
      * @param outsideClickHandlers The outside click handler to remove
      */
-    void removeOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandlers);
+    void removeOutsideClickHandler(@NotNull Consumer<@NotNull InventoryClickEvent> outsideClickHandler);
     
     /**
      * A {@link Window} builder.