diff --git a/tests/failures/chpasswd-PAM/05_chpasswd-e_time_0/chpasswd.test b/tests/failures/chpasswd-PAM/05_chpasswd-e_time_0/chpasswd.test
index 2fdd2d8d..049ebb9a 100755
--- a/tests/failures/chpasswd-PAM/05_chpasswd-e_time_0/chpasswd.test
+++ b/tests/failures/chpasswd-PAM/05_chpasswd-e_time_0/chpasswd.test
@@ -18,7 +18,7 @@ change_config
 
 echo -n "Change passwords (chpasswd -e)..."
 echo 'nobody:test
-lp:test2' | LD_PRELOAD=../../../common/time_0.so chpasswd -e
+lp:test2' | LD_PRELOAD=../../../common/time_0.so chpasswd -e 2>/dev/null
 echo "OK"
 
 echo -n "Check the passwd file..."
diff --git a/tests/failures/usermod/10_usermod_-p_time_0/usermod.test b/tests/failures/usermod/10_usermod_-p_time_0/usermod.test
index f9dde07b..f54c918c 100755
--- a/tests/failures/usermod/10_usermod_-p_time_0/usermod.test
+++ b/tests/failures/usermod/10_usermod_-p_time_0/usermod.test
@@ -17,7 +17,7 @@ trap 'log_status "$0" "FAILURE"; restore_config' 0
 change_config
 
 echo -n "Change the user's password (usermod -p foopass foo)..."
-LD_PRELOAD=../../../common/time_0.so usermod -p foopass foo
+LD_PRELOAD=../../../common/time_0.so usermod -p foopass foo 2>/dev/null
 echo "OK"
 
 echo -n "Check the passwd file..."
diff --git a/tests/failures/usermod/11_usermod-f_no_shadow_entry_time_0/usermod.test b/tests/failures/usermod/11_usermod-f_no_shadow_entry_time_0/usermod.test
index f678e99b..56e9c832 100755
--- a/tests/failures/usermod/11_usermod-f_no_shadow_entry_time_0/usermod.test
+++ b/tests/failures/usermod/11_usermod-f_no_shadow_entry_time_0/usermod.test
@@ -17,7 +17,7 @@ trap 'log_status "$0" "FAILURE"; restore_config' 0
 change_config
 
 echo -n "Change the user's password (usermod -f 12 foo)..."
-LD_PRELOAD=../../../common/time_0.so usermod -f 12 foo
+LD_PRELOAD=../../../common/time_0.so usermod -f 12 foo 2>/dev/null
 echo "OK"
 
 echo -n "Check the passwd file..."