diff --git a/src/math/lp/int_solver.cpp b/src/math/lp/int_solver.cpp
index 12fe9f917..1a95fe55e 100644
--- a/src/math/lp/int_solver.cpp
+++ b/src/math/lp/int_solver.cpp
@@ -428,7 +428,6 @@ lia_move int_solver::check(lp::explanation * e) {
         m_lar_solver->pivot_fixed_vars_from_basis();
 
     CHECK_RET(patch_nbasic_columns());
-    ++m_number_of_calls;
     CHECK_RET(find_cube());        
     CHECK_RET(hnf_cut());    
     CHECK_RET(gomory_cut());