diff --git a/src/functions/tnlTestFunction.h b/src/functions/tnlTestFunction.h
index 285009b40e952b2464ab3d3a9a734db99ebf9062..0411f9c4e0aa11863fc04724d0ca41d58931d4b6 100644
--- a/src/functions/tnlTestFunction.h
+++ b/src/functions/tnlTestFunction.h
@@ -33,7 +33,8 @@ class tnlTestFunction
    enum TestFunctions{ constant,
                        expBump,
                        sinBumps,
-                       sinWave };
+                       sinWave
+		       cylinder };
 
    enum TimeDependence { none,
                          linear,