diff --git a/sys/kern/kern_acl.c b/sys/kern/kern_acl.c
index 2ae39e06932d..915f12df03df 100644
--- a/sys/kern/kern_acl.c
+++ b/sys/kern/kern_acl.c
@@ -229,7 +229,7 @@ vaccess_acl_posix1e(enum vtype type, uid_t file_uid, gid_t file_gid,
 	for (i = 0; i < acl->acl_cnt; i++) {
 		switch (acl->acl_entry[i].ae_tag) {
 		case ACL_GROUP_OBJ:
-			if (file_gid != cred->cr_groups[0])
+			if (!groupmember(file_gid, cred))
 				break;
 			dac_granted = 0;
 			if (acl->acl_entry[i].ae_perm & ACL_EXECUTE)
diff --git a/sys/kern/subr_acl_posix1e.c b/sys/kern/subr_acl_posix1e.c
index 2ae39e06932d..915f12df03df 100644
--- a/sys/kern/subr_acl_posix1e.c
+++ b/sys/kern/subr_acl_posix1e.c
@@ -229,7 +229,7 @@ vaccess_acl_posix1e(enum vtype type, uid_t file_uid, gid_t file_gid,
 	for (i = 0; i < acl->acl_cnt; i++) {
 		switch (acl->acl_entry[i].ae_tag) {
 		case ACL_GROUP_OBJ:
-			if (file_gid != cred->cr_groups[0])
+			if (!groupmember(file_gid, cred))
 				break;
 			dac_granted = 0;
 			if (acl->acl_entry[i].ae_perm & ACL_EXECUTE)
diff --git a/sys/kern/vfs_acl.c b/sys/kern/vfs_acl.c
index 2ae39e06932d..915f12df03df 100644
--- a/sys/kern/vfs_acl.c
+++ b/sys/kern/vfs_acl.c
@@ -229,7 +229,7 @@ vaccess_acl_posix1e(enum vtype type, uid_t file_uid, gid_t file_gid,
 	for (i = 0; i < acl->acl_cnt; i++) {
 		switch (acl->acl_entry[i].ae_tag) {
 		case ACL_GROUP_OBJ:
-			if (file_gid != cred->cr_groups[0])
+			if (!groupmember(file_gid, cred))
 				break;
 			dac_granted = 0;
 			if (acl->acl_entry[i].ae_perm & ACL_EXECUTE)