diff --git a/flow/src/wWakeResidual.cpp b/flow/src/wWakeResidual.cpp
index 376db08fa30d573caddfc7a0975a2fbe1b2dee8a..934b69a295aa60cfb05d0e9223c6c1541db0bdb6 100644
--- a/flow/src/wWakeResidual.cpp
+++ b/flow/src/wWakeResidual.cpp
@@ -132,7 +132,7 @@ std::tuple<Eigen::MatrixXd, Eigen::MatrixXd> WakeResidual::buildGradientFlow(Wak
     // Build
     Eigen::MatrixXd Au, Al;
     std::tie(Au, Al) = WakeResidual::buildFixed(we, phi, vi);
-    return std::make_tuple(2* Au, 2* Al);
+    return std::make_tuple(2 * Au, 2 * Al);
 }
 
 /**
diff --git a/flow/tests/meshDef3.py b/flow/tests/meshDef3.py
index ab3fd22a414d8e73068057038add0778bfe531e5..b1e411914db5c6bf6430bc53b853ac8a8fbab30e 100644
--- a/flow/tests/meshDef3.py
+++ b/flow/tests/meshDef3.py
@@ -124,7 +124,7 @@ def main():
         tests.add(CTest('iteration count', solver.nIt, 3, 1, forceabs=True))
         tests.add(CTest('CL', solver.Cl, 0.135, 5e-1))
         tests.add(CTest('CD', solver.Cd, 0.0062, 1e-2)) # Tranair (NF=0.0062, FF=0.0030), Panair 0.0035
-        tests.add(CTest('CS', solver.Cs, -0.011, 1e-2))
+        tests.add(CTest('CS', solver.Cs, -0.011, 5e-2))
         tests.add(CTest('CM', solver.Cm, 0.0061, 1e-2))
     tests.run()