diff --git a/src/vol/partition.c b/src/vol/partition.c
index 748975a380..62d47c9942 100644
--- a/src/vol/partition.c
+++ b/src/vol/partition.c
@@ -440,7 +440,7 @@ VAttachPartitions(void)
 	/* but allow zfs too if we're in the NAMEI environment */
 	if (
 #ifdef AFS_NAMEI_ENV
-	    ((!(strcmp(mnt.mnt_fstype, "ufs") &&
+	    (((strcmp(mnt.mnt_fstype, "ufs") &&
 		strcmp(mnt.mnt_fstype, "zfs"))))
 #else
 	    (strcmp(mnt.mnt_fstype, "ufs") != 0)