diff --git a/src/Section.py b/src/Section.py
index e7c8f3b..1a9a891 100644
--- a/src/Section.py
+++ b/src/Section.py
@@ -28,7 +28,7 @@ def Setup(self, x, y, w, h):
     def SetBackgroundColor(self, color):
         self.bgColor = color
 
-    def OnClicked(self, button, x, y):
+    def OnMouseDown(self, button, x, y):
         if not self.rect.collidepoint(x, y):
             return
         raise NotImplementedError('For test')
@@ -98,7 +98,7 @@ def Update(self):
             self.canvas.topleft
         )
 
-    def OnClicked(self, button, x, y):
+    def OnMouseDown(self, button, x, y):
         print(x, y)
         if self.canvas.collidepoint(x, y):
             _localX, _localY = self.LocalPosition((x, y))
diff --git a/src/Window.py b/src/Window.py
index 9ff1703..cb0796b 100644
--- a/src/Window.py
+++ b/src/Window.py
@@ -68,7 +68,7 @@ def EventFeedback(self, event):
                 self.mouseButtonDown[0] = 1
 
                 # ----- for test -----
-                CanvasSection.OnClicked(1, self.mouseX, self.mouseY)
+                CanvasSection.OnMouseDown(1, self.mouseX, self.mouseY)
 
             elif event.button == 2:
                 self.mouseButtonDown[1] = 1