diff --git a/dune/solvers/iterationsteps/CMakeLists.txt b/dune/solvers/iterationsteps/CMakeLists.txt
index f506aac5660cf7c1b4851febf8920c69d1325df2..530a4aca2844c8cc5becf7567e5e178ea310f3f5 100644
--- a/dune/solvers/iterationsteps/CMakeLists.txt
+++ b/dune/solvers/iterationsteps/CMakeLists.txt
@@ -17,6 +17,8 @@ install(FILES
     obstacletnnmgstep.hh
     projectedblockgsstep.cc
     projectedblockgsstep.hh
+    projectedgradientstep.hh
+    projectedgradientstep.cc
     projectedlinegsstep.cc
     projectedlinegsstep.hh
     richardsonstep.hh
diff --git a/dune/solvers/iterationsteps/Makefile.am b/dune/solvers/iterationsteps/Makefile.am
index 49de56dc920c7152e77477adecc89a860b6c5981..ed9466610ae4df557096415266b50b6d7bebc0be 100644
--- a/dune/solvers/iterationsteps/Makefile.am
+++ b/dune/solvers/iterationsteps/Makefile.am
@@ -18,6 +18,8 @@ iterationsteps_HEADERS = amgstep.hh \
                          obstacletnnmgstep.hh \
                          projectedblockgsstep.hh \
                          projectedblockgsstep.cc \
+                         projectedgradientstep.hh \
+                         projectedgradientstep.cc \
                          projectedlinegsstep.cc projectedlinegsstep.hh \
                          richardsonstep.hh \
                          truncatedblockgsstep.hh \