diff --git a/hooks/usr b/hooks/usr
index f45ca7f..44aebb2 100644
--- a/hooks/usr
+++ b/hooks/usr
@@ -4,12 +4,12 @@ run_latehook() {
     local usr_source mountopts passno realtab=/new_root/etc/fstab
 
     if [ -f "$realtab" ]; then
-        if usr_source=$(findmnt -snero source --tab-file="$realtab" /usr); then
-            mountopts=$(findmnt -snero options --tab-file="$realtab" /usr)
+        if usr_source=$(findmnt -snero source --tab-file="$realtab" -T /usr); then
+            mountopts=$(findmnt -snero options --tab-file="$realtab" -T /usr)
 
             # returning the passno column requires util-linux >= 2.23. for
             # older versions which do not support this column, always fsck.
-            passno=$(findmnt -snero passno --tab-file="$realtab" /usr 2>/dev/null)
+            passno=$(findmnt -snero passno --tab-file="$realtab" -T /usr 2>/dev/null)
             if [ -z "$passno" ] || [ "$passno" -gt 0 ]; then
                 fsck_device "$usr_source"
             fi
diff --git a/install/autodetect b/install/autodetect
index c98db73..846aa3a 100644
--- a/install/autodetect
+++ b/install/autodetect
@@ -30,7 +30,7 @@ build() {
     done
 
     # detect filesystem for root
-    if rootfstype=$(findmnt -uno fstype '/'); then
+    if rootfstype=$(findmnt -uno fstype -T '/'); then
         add_if_avail "$rootfstype"
     else
         error "failed to detect root filesystem"