diff --git a/opm/autodiff/NewtonIterationBlackoilSimple.cpp b/opm/autodiff/NewtonIterationBlackoilSimple.cpp
index c8d2472d9..228225b4c 100644
--- a/opm/autodiff/NewtonIterationBlackoilSimple.cpp
+++ b/opm/autodiff/NewtonIterationBlackoilSimple.cpp
@@ -60,7 +60,7 @@ namespace Opm
                                 matr.outerIndexPtr(), matr.innerIndexPtr(), matr.valuePtr(),
                                 total_residual.value().data(), dx.data());
 
-        // store iterations 
+        // store iterations
         iterations_ = rep.iterations;
 
         if (!rep.converged) {