diff --git a/Win32/Win32App.cpp b/Win32/Win32App.cpp
index 5234b032..0e29c517 100644
--- a/Win32/Win32App.cpp
+++ b/Win32/Win32App.cpp
@@ -355,7 +355,7 @@ namespace win32
 						}
 					}
 				}
-				[fallthrough]];
+				[[fallthrough]];
 			}
 			case WM_TRAYICON:
 			{