diff --git a/meta/recipes-support/ca-certificates/ca-certificates_20250419.bb b/meta/recipes-support/ca-certificates/ca-certificates_20250419.bb
index f06a30bd6d..01f594095e 100644
--- a/meta/recipes-support/ca-certificates/ca-certificates_20250419.bb
+++ b/meta/recipes-support/ca-certificates/ca-certificates_20250419.bb
@@ -60,7 +60,8 @@ do_install:append:class-target () {
 }
 
 pkg_postinst:${PN}:class-target () {
-    $D${sbindir}/update-ca-certificates --sysroot $D
+    [ -n "$D" ] && sysroot_args="--sysroot $D"
+    $D${sbindir}/update-ca-certificates $sysroot_args
 }
 
 CONFFILES:${PN} += "${sysconfdir}/ca-certificates.conf"