diff --git a/apps/cpu/ConvectionOfVortex/cov.cpp b/apps/cpu/ConvectionOfVortex/cov.cpp
index ba53075ca223d6c97459d8addfe2365dd242d817..627f5d03abe32f43cf3eb33649e0f209595b8b6a 100644
--- a/apps/cpu/ConvectionOfVortex/cov.cpp
+++ b/apps/cpu/ConvectionOfVortex/cov.cpp
@@ -75,7 +75,7 @@ void run()
 
       SPtr<LBMUnitConverter> conv = SPtr<LBMUnitConverter>(new LBMUnitConverter());
 
-      int baseLevel = 0;
+      //int baseLevel = 0;
       int refineLevel = 1;
 
       //bounding box