diff --git a/s/runtests b/s/runtests
index d0b3432e8..2f22402dc 100755
--- a/s/runtests
+++ b/s/runtests
@@ -20,6 +20,6 @@ $ROOT/$BUILD/eressea/eressea -v0 scripts/run-tests.lua
 $ROOT/$BUILD/eressea/eressea -v0 scripts/run-tests-e2.lua
 $ROOT/$BUILD/eressea/eressea -v0 scripts/run-tests-e3.lua
 $ROOT/$BUILD/eressea/eressea -v0 scripts/run-tests-e4.lua
-rm -rf data reports orders.txt score score.alliances
+rm -rf data reports orders.txt score score.alliances datum turn
 
 cd $OLDWPD
diff --git a/src/kernel/save.c b/src/kernel/save.c
index bffc339f9..b9b522794 100644
--- a/src/kernel/save.c
+++ b/src/kernel/save.c
@@ -1858,12 +1858,6 @@ static void clear_npc_orders(faction *f)
     }
 }
 
-int version_no(const char *str) {
-    int maj = 0, min = 0, bld = 0;
-    sscanf(str, "%d.%d.%d", &maj, &min, &bld);
-    return (maj << 16) | (min << 8) | bld;
-}
-
 int writegame(const char *filename)
 {
     int n;
diff --git a/src/kernel/save.h b/src/kernel/save.h
index 27dd56661..3cd443926 100644
--- a/src/kernel/save.h
+++ b/src/kernel/save.h
@@ -79,7 +79,6 @@ extern "C" {
 
     int write_game(struct gamedata *data);
     int read_game(struct gamedata *data);
-    int version_no(const char *str);
 
     /* test-only functions that give access to internal implementation details (BAD) */
     void _test_write_password(struct gamedata *data, const struct faction *f);
diff --git a/src/kernel/save.test.c b/src/kernel/save.test.c
index 95acbd4c0..00b5ff96c 100644
--- a/src/kernel/save.test.c
+++ b/src/kernel/save.test.c
@@ -5,6 +5,7 @@
 #include <attributes/key.h>
 
 #include "save.h"
+#include "version.h"
 #include "unit.h"
 #include "group.h"
 #include "ally.h"
diff --git a/src/kernel/version.c b/src/kernel/version.c
index 95d61f014..ffc8177b1 100644
--- a/src/kernel/version.c
+++ b/src/kernel/version.c
@@ -1,5 +1,7 @@
 #include "version.h"
 
+#include <stdio.h>
+
 #ifndef ERESSEA_VERSION
 // the version number, if it was not passed to make with -D
 #define ERESSEA_VERSION "3.10.0-devel"
@@ -8,3 +10,9 @@
 const char *eressea_version(void) {
     return ERESSEA_VERSION;
 }
+
+int version_no(const char *str) {
+    int maj = 0, min = 0, bld = 0;
+    sscanf(str, "%d.%d.%d", &maj, &min, &bld);
+    return (maj << 16) | (min << 8) | bld;
+}
diff --git a/src/kernel/version.h b/src/kernel/version.h
index f71177f9f..c268e7bac 100644
--- a/src/kernel/version.h
+++ b/src/kernel/version.h
@@ -1,13 +1,17 @@
+#pragma once
 /* 
  +-------------------+  
  |                   |  Enno Rehling <enno@eressea.de>
  | Eressea PBEM host |  Katja Zedel <katze@felidae.kn-bremen.de>
- | (c) 1998 - 2007   |  Christian Schlittchen <corwin@amber.kn-bremen.de>
- |                   |
+ | (c) 1998 - 2016   |  Christian Schlittchen <corwin@amber.kn-bremen.de>
+ |                   |  https://github.com/eressea/server
  +-------------------+
-
- This program may not be used, modified or distributed 
- without prior permission by the authors of Eressea.
  */
 
+#ifndef H_KERNEL_VERSION
+#define H_KERNEL_VERSION
+
 const char *eressea_version(void);
+int version_no(const char *str);
+
+#endif