diff --git a/src/one-body-sample.cc b/src/one-body-sample.cc
index afeea73e19dc8b08b632a76ae9ab8cd32d993e64..1e5016fa83f3558b95fef100fc4c524dc5ae3aa9 100644
--- a/src/one-body-sample.cc
+++ b/src/one-body-sample.cc
@@ -416,8 +416,13 @@ int main(int argc, char *argv[]) {
         }
         if (state_fpi > 1) {
           double const correctionNorm = energyNorm.diff(u_saved, u);
-          if (correctionNorm < fixedPointTolerance)
+          if (correctionNorm < fixedPointTolerance) {
+            if (parset.get<bool>("printProgress")) {
+              std::cerr << '#';
+              std::cerr.flush();
+            }
             break;
+          }
         }
         if (state_fpi == state_fpi_max)
           DUNE_THROW(Dune::Exception, "FPI failed to converge");