diff --git a/usadelndsoc/solver.py b/usadelndsoc/solver.py
index 96b33e2058dfc0f9159968d3b03e533effebe1eb..ff4bec7947b81a1721e5603cd8c9f3e177926d63 100644
--- a/usadelndsoc/solver.py
+++ b/usadelndsoc/solver.py
@@ -275,7 +275,7 @@ class Solver:
                     A,
                     -F,
                     M=M,
-                    tol=1e-3,
+                    rtol=1e-3,
                     atol=0,
                     maxiter=l_maxiter,
                 )
@@ -284,7 +284,7 @@ class Solver:
                     A,
                     -F,
                     M=M,
-                    tol=1e-3,
+                    rtol=1e-3,
                     atol=0,
                     maxiter=l_maxiter,
                 )
@@ -293,7 +293,7 @@ class Solver:
                     A,
                     -F,
                     M=M,
-                    tol=1e-3,
+                    rtol=1e-3,
                     atol=0,
                     maxiter=l_maxiter,
                     inner_m=l_inner_m,
@@ -307,7 +307,7 @@ class Solver:
                     A,
                     -F,
                     M=M,
-                    tol=1e-3,
+                    rtol=1e-3,
                     atol=0,
                     maxiter=l_maxiter,
                     m=l_inner_m,
@@ -317,7 +317,7 @@ class Solver:
                     A,
                     -F,
                     M=M,
-                    tol=1e-3,
+                    rtol=1e-3,
                     atol=0,
                     maxiter=l_maxiter,
                     restart=l_inner_m,