diff --git a/tests/kdc/check-kpasswdd.in b/tests/kdc/check-kpasswdd.in
index 279638be0..4d824fae8 100644
--- a/tests/kdc/check-kpasswdd.in
+++ b/tests/kdc/check-kpasswdd.in
@@ -61,6 +61,7 @@ kinit="${TESTS_ENVIRONMENT} ../../kuser/kinit -c $cache --no-afslog"
 klist="${TESTS_ENVIRONMENT} ../../kuser/klist -c $cache"
 kgetcred="${TESTS_ENVIRONMENT} ../../kuser/kgetcred -c $cache"
 kdestroy="${TESTS_ENVIRONMENT} ../../kuser/kdestroy -c $cache --no-unlog"
+apreq="${TESTS_ENVIRONMENT} ../../lib/krb5/test_ap-req"
 
 KRB5_CONFIG="${objdir}/krb5.conf"
 export KRB5_CONFIG
@@ -113,7 +114,7 @@ echo "Getting tickets"; > messages.log
 ${kgetcred} ${server}@${R} || { ec=1 ; eval "${testfailed}"; }
 echo "Listing tickets"; > messages.log
 ${klist} > /dev/null || { ec=1 ; eval "${testfailed}"; }
-./ap-req ${server}@${R} ${keytab} ${cache} || \
+${apreq} ${server}@${R} ${keytab} ${cache} || \
 	{ ec=1 ; eval "${testfailed}"; }
 ${kdestroy}
 
@@ -146,7 +147,7 @@ echo "Getting tickets"; > messages.log
 ${kgetcred} ${server}@${R} || { ec=1 ; eval "${testfailed}"; }
 echo "Listing tickets"; > messages.log
 ${klist} > /dev/null || { ec=1 ; eval "${testfailed}"; }
-./ap-req ${server}@${R} ${keytab} ${cache} || \
+${apreq} ${server}@${R} ${keytab} ${cache} || \
 	{ ec=1 ; eval "${testfailed}"; }
 ${kdestroy}