diff --git a/project_euromir/solver_new.py b/project_euromir/solver_new.py
index cc9858d..4964754 100644
--- a/project_euromir/solver_new.py
+++ b/project_euromir/solver_new.py
@@ -41,7 +41,7 @@
 
 logger = logging.getLogger(__name__)
 
-QR_PRESOLVE = False
+QR_PRESOLVE = True
 
 def solve(matrix, b, c, zero, nonneg,
         # xy = None, # need to import logic for equilibration