diff --git a/PowerEditor/src/ScintillaComponent/ScintillaEditView.cpp b/PowerEditor/src/ScintillaComponent/ScintillaEditView.cpp
index 3a464cfa8..1ae0104e4 100644
--- a/PowerEditor/src/ScintillaComponent/ScintillaEditView.cpp
+++ b/PowerEditor/src/ScintillaComponent/ScintillaEditView.cpp
@@ -361,7 +361,7 @@ LRESULT ScintillaEditView::scintillaNew_Proc(HWND hwnd, UINT Message, WPARAM wPa
 		case WM_MOUSEHWHEEL :
 		{
 			::CallWindowProc(_scintillaDefaultProc, hwnd, WM_HSCROLL, ((short)HIWORD(wParam) > 0)?SB_LINERIGHT:SB_LINELEFT, 0);
-			break;
+			return TRUE;
 		}
 
 		case WM_MOUSEWHEEL :