diff --git a/dune/solvers/test/genericvectortoolstest.cc b/dune/solvers/test/genericvectortoolstest.cc
index fdf52fd512136144e18febb8f179c5407d9bd948..dd063873f100a479a1452fedfec9a167da28fcf5 100644
--- a/dune/solvers/test/genericvectortoolstest.cc
+++ b/dune/solvers/test/genericvectortoolstest.cc
@@ -1,6 +1,5 @@
 #include <config.h>
 
-#include <stdio.h>
 #include <cmath>
 
 #include <dune/common/exceptions.hh>
diff --git a/dune/solvers/test/lowrankoperatortest.cc b/dune/solvers/test/lowrankoperatortest.cc
index fda0172fbe2235e76d672e44eb7813dbb75a5a10..56f39806af09fc31403165ef6df312f559a67851 100644
--- a/dune/solvers/test/lowrankoperatortest.cc
+++ b/dune/solvers/test/lowrankoperatortest.cc
@@ -1,6 +1,5 @@
 #include <config.h>
 
-#include <stdio.h>
 #include <cmath>
 
 #include <dune/common/exceptions.hh>
diff --git a/dune/solvers/test/nulloperatortest.cc b/dune/solvers/test/nulloperatortest.cc
index ccd95f917c70904a032a4092d85922d78367d8f7..60c84e4bd749406702eb38de01366ef75a61d9c3 100644
--- a/dune/solvers/test/nulloperatortest.cc
+++ b/dune/solvers/test/nulloperatortest.cc
@@ -1,6 +1,5 @@
 #include <config.h>
 
-#include <stdio.h>
 #include <cmath>
 
 #include <dune/common/exceptions.hh>
diff --git a/dune/solvers/test/sumoperatortest.cc b/dune/solvers/test/sumoperatortest.cc
index 25a39c5bba1b7bcd56a9bba16e5514f30944f333..864c16a3b55d7ffd19d4a42aef2e7fc7d5c7554f 100644
--- a/dune/solvers/test/sumoperatortest.cc
+++ b/dune/solvers/test/sumoperatortest.cc
@@ -1,6 +1,5 @@
 #include <config.h>
 
-#include <stdio.h>
 #include <cmath>
 
 #include <dune/common/exceptions.hh>