diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a57ece3b7..7057bbe7f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -183,6 +183,7 @@ set(TESTS_SRC
   vortex.test.c
   tests.test.c
   reports.test.c
+  seen.test.c
   travelthru.test.c
   callback.test.c
   direction.test.c
diff --git a/src/seen.test.c b/src/seen.test.c
new file mode 100644
index 000000000..016fcee76
--- /dev/null
+++ b/src/seen.test.c
@@ -0,0 +1,26 @@
+#include <platform.h>
+#include <config.h>
+#include "seen.h"
+
+#include <kernel/region.h>
+
+#include <CuTest.h>
+#include <tests.h>
+
+static void test_seen_region(CuTest *tc) {
+    region *r;
+    seen_region **seen;
+
+    test_cleanup();
+    r = test_create_region(0, 0, 0);
+    seen = seen_init();
+    seen_done(seen);
+    test_cleanup();    
+}
+
+CuSuite *get_seen_suite(void)
+{
+    CuSuite *suite = CuSuiteNew();
+    SUITE_ADD_TEST(suite, test_seen_region);
+    return suite;
+}
diff --git a/src/test_eressea.c b/src/test_eressea.c
index 1ae1dfe85..f531d8042 100644
--- a/src/test_eressea.c
+++ b/src/test_eressea.c
@@ -36,6 +36,7 @@ int RunAllTests(void)
   /* self-test */
   RUN_TESTS(suite, tests);
   RUN_TESTS(suite, callback);
+  RUN_TESTS(suite, seen);
   RUN_TESTS(suite, json);
   RUN_TESTS(suite, jsonconf);
   RUN_TESTS(suite, direction);
diff --git a/src/tests.c b/src/tests.c
index fe0e7bfcd..cda710ef7 100644
--- a/src/tests.c
+++ b/src/tests.c
@@ -1,6 +1,7 @@
 #include <platform.h>
 #include "tests.h"
 #include "keyword.h"
+#include "seen.h"
 
 #include <kernel/config.h>
 #include <kernel/region.h>
@@ -82,6 +83,7 @@ void test_cleanup(void)
     free_races();
     free_spellbooks();
     free_gamedata();
+    free_seen();
     mt_clear();
     if (!mt_find("missing_message")) {
         mt_register(mt_new_va("missing_message", "name:string", 0));