diff --git a/reference/CoWork/main.cpp b/reference/CoWork/main.cpp
index 1d72ff6ef..39f6d14ee 100644
--- a/reference/CoWork/main.cpp
+++ b/reference/CoWork/main.cpp
@@ -65,7 +65,7 @@ void App::Paint(Draw& w)
 		for(int y = 0; y < sz.cy; y++) {
 		#ifdef CPP_11
 			RGBA *line = ib[y];
-			co & lambda([=] {
+			co & [=] {
 				Point c = sz / 2;
 				c = Point(int(sin((double)phase / 131) * c.x + c.x), int(sin((double)phase / 127) * c.y + c.y));
 				int yy = (y - c.y) * (y - c.y);
@@ -73,7 +73,7 @@ void App::Paint(Draw& w)
 					double d = (x - c.x) * (x - c.x) + yy;
 					line[x] = GrayColor((int)(120 + 120 * sin(d / 1000 - (double)phase / 5)));
 				}
-			});
+			};
 		#else
 			co & callback4(DoLine, ib[y], phase, y, sz);
 		#endif