diff --git a/scripts/eressea/tests/common.lua b/scripts/eressea/tests/common.lua
index 8c8664992..365b87195 100644
--- a/scripts/eressea/tests/common.lua
+++ b/scripts/eressea/tests/common.lua
@@ -45,6 +45,7 @@ function test_flags()
     eressea.write_game("test.dat")
     eressea.free_game()
     eressea.read_game("test.dat")
+    os.remove('test.dat')
     f = get_faction(no)
     assert_equal(flags, f.flags)
 end
diff --git a/scripts/eressea/tests/orders.lua b/scripts/eressea/tests/orders.lua
index ce6ba9949..af1ba8863 100644
--- a/scripts/eressea/tests/orders.lua
+++ b/scripts/eressea/tests/orders.lua
@@ -105,6 +105,7 @@ function test_process_quit()
     eressea.write_game('test.dat')
     eressea.free_game()
     eressea.read_game('test.dat')
+    os.remove('test.dat')
     assert_equal(nil, _G.get_faction(fno))
 end
 
diff --git a/src/kernel/group.test.c b/src/kernel/group.test.c
index 1272fc493..46d794d2d 100644
--- a/src/kernel/group.test.c
+++ b/src/kernel/group.test.c
@@ -50,6 +50,7 @@ static void test_group_readwrite(CuTest * tc)
     CuAssertPtrEquals(tc, 0, f->groups->allies->next);
     CuAssertPtrEquals(tc, f, f->groups->allies->faction);
     CuAssertIntEquals(tc, HELP_GIVE, f->groups->allies->status);
+    remove("test.dat");
     test_cleanup();
 }