diff --git a/icons/koch_icon.o b/icons/koch_icon.o
new file mode 100644
index 0000000000..b780f4d88f
Binary files /dev/null and b/icons/koch_icon.o differ
diff --git a/icons/nimrod_icon.o b/icons/nimrod_icon.o
new file mode 100644
index 0000000000..c8c364412c
Binary files /dev/null and b/icons/nimrod_icon.o differ
diff --git a/koch.nim b/koch.nim
index 9eec6bd767..5d49cadfa5 100755
--- a/koch.nim
+++ b/koch.nim
@@ -168,7 +168,7 @@ proc cleanAux(dir: string) =
       of "nimcache": 
         echo "removing dir: ", path
         removeDir(path)
-      of "dist", ".git": nil
+      of "dist", ".git", "icons": nil
       else: cleanAux(path)
     else: nil
 
diff --git a/tests/system/io.nim b/tests/system/io.nim
index d9604eb46b..ec9a1ed704 100644
--- a/tests/system/io.nim
+++ b/tests/system/io.nim
@@ -1,7 +1,7 @@
 import
   unittest, osproc, streams, os
 const STRING_DATA = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet."
-const TEST_FILE = "tests/testdata/string"
+const TEST_FILE = "tests/testdata/string.txt"
 
 proc echoLoop(str: string): string =
   result = ""
diff --git a/tests/testdata/string.txt b/tests/testdata/string.txt
new file mode 100644
index 0000000000..41bfe81b82
--- /dev/null
+++ b/tests/testdata/string.txt
@@ -0,0 +1 @@
+Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
\ No newline at end of file