diff --git a/src/DivaGL/mdl/disp_manager.cpp b/src/DivaGL/mdl/disp_manager.cpp
index 945b6b2..f6c6db1 100644
--- a/src/DivaGL/mdl/disp_manager.cpp
+++ b/src/DivaGL/mdl/disp_manager.cpp
@@ -1021,7 +1021,7 @@ namespace mdl {
                 indices.push_back(j + m);
                 indices.push_back(k + m);
 
-                if (k++ >= slices)
+                if (++k >= slices)
                     k = 0;
             }
         }