1 files changed, 2 insertions, 2 deletions

diff --git a/tests/fdso.c b/tests/fdso.c
index 8a2a0d0..8e320cf 100644
--- a/tests/fdso.c
+++ b/tests/fdso.c
@@ -48,8 +48,8 @@ TESTCASE(invalid_od, ALL,
 TESTCASE(invalid_obj_type, ALL,
          "reject invalid object types")
 {
-        SYSCALL_FAILS( EINVAL, od_open(0, -1, 0) );
-        SYSCALL_FAILS( EINVAL, od_open(0, 10, 0) );
+        SYSCALL_FAILS( EINVAL, od_open(0, (obj_type_t)-1, 0) );
+        SYSCALL_FAILS( EINVAL, od_open(0, (obj_type_t)10, 0) );
 }
 
 TESTCASE(not_inherit_od, GSN_EDF | PSN_EDF,