diff --git a/aegisub/src/frame_main.cpp b/aegisub/src/frame_main.cpp
index f20b17401..aaa64c78c 100644
--- a/aegisub/src/frame_main.cpp
+++ b/aegisub/src/frame_main.cpp
@@ -554,6 +554,7 @@ BEGIN_EVENT_TABLE(FrameMain, wxFrame)
 	EVT_CLOSE(FrameMain::OnCloseWindow)
 
 	EVT_KEY_DOWN(FrameMain::OnKeyDown)
+	EVT_MOUSEWHEEL(FrameMain::OnMouseWheel)
 
 #ifdef __WXMAC__
 //   EVT_MENU(wxID_ABOUT, FrameMain::OnAbout)
@@ -686,3 +687,7 @@ void FrameMain::OnKeyDown(wxKeyEvent &event) {
 	if (!hotkey::check("Main Frame", context.get(), event.GetKeyCode(), event.GetUnicodeKey(), event.GetModifiers()))
 		event.Skip();
 }
+
+void FrameMain::OnMouseWheel(wxMouseEvent &evt) {
+	ForwardMouseWheelEvent(this, evt);
+}
diff --git a/aegisub/src/frame_main.h b/aegisub/src/frame_main.h
index 39d999950..b43c3ef4f 100644
--- a/aegisub/src/frame_main.h
+++ b/aegisub/src/frame_main.h
@@ -98,6 +98,7 @@ class FrameMain: public wxFrame {
 	void UpdateTitle();
 
 	void OnKeyDown(wxKeyEvent &event);
+	void OnMouseWheel(wxMouseEvent &evt);
 
 	/// @brief Autosave the currently open file, if any
 	void OnAutoSave(wxTimerEvent &event);