diff --git a/dune/tectonic/minimisation.hh b/dune/tectonic/minimisation.hh
index 5407fc3f3e0211bb0c2373c58d6b93772da2fa22..92eb9c0b146e0dc0c8575e7fd017c01f497538de 100644
--- a/dune/tectonic/minimisation.hh
+++ b/dune/tectonic/minimisation.hh
@@ -104,7 +104,7 @@ void minimise(Functional const &J, typename Functional::SmallVector &x,
     SmallVector descDir;
     bool const linesearchp = J.descentDirection(x, descDir);
 
-    if (descDir == SmallVector(0.0))
+    if (descDir.two_norm() < 1e-14) // TODO: Make controllable
       return;
 
     if (linesearchp) {
diff --git a/src/test-gradient-sample-steep.cc b/src/test-gradient-sample-steep.cc
index 6b39276f77755b3b20a7e6ece750dd97167e435f..9e7350bdb317171282b1e3009bc49956cd6427a0 100644
--- a/src/test-gradient-sample-steep.cc
+++ b/src/test-gradient-sample-steep.cc
@@ -20,7 +20,7 @@ int main() {
   typedef Functional::SmallVector SmallVector;
 
   SmallMatrix const A = { { 1, 0 }, { 0, 1 } };
-  SmallVector const b = { 1, 2 };
+  SmallVector const b = { 1, 2.5 };
 
   auto const f = Dune::make_shared<Dune::SampleFunction<2> const>();
   auto const phi = Dune::make_shared<Functional::NonlinearityType const>(f);
diff --git a/src/test-gradient-sample-steep2.cc b/src/test-gradient-sample-steep2.cc
index 6f27d54ded9fbd25d804f50577332bbe055d1899..30a8507e5f0dd57e781ee9c48d56c898c732978a 100644
--- a/src/test-gradient-sample-steep2.cc
+++ b/src/test-gradient-sample-steep2.cc
@@ -29,7 +29,7 @@ int main() {
   double ret1;
   {
     SmallVector start = { 0, 1 };
-    ret1 = functionTester(J, start, 1);
+    ret1 = functionTester(J, start, 2);
   }
 
   double ret2;
diff --git a/src/test-gradient-sample-verysteep.cc b/src/test-gradient-sample-verysteep.cc
index 78e1ec89632f00c75fcd9caad7aca59bc26e20f9..86b3f2c8cd6a52f6feb051056e362fb3cd207061 100644
--- a/src/test-gradient-sample-verysteep.cc
+++ b/src/test-gradient-sample-verysteep.cc
@@ -29,7 +29,7 @@ int main() {
   double ret1;
   {
     SmallVector start = { 0, 1 };
-    ret1 = functionTester(J, start, 1);
+    ret1 = functionTester(J, start, 2);
   }
 
   double ret2;