diff --git a/abuild.in b/abuild.in
index 7d999ae..e194c69 100644
--- a/abuild.in
+++ b/abuild.in
@@ -2507,11 +2507,11 @@ rootbld() {
 		return
 	fi
 
-	apk info -eq abuild-rootbld || die "rootbld: abuild-rootbld package not installed"
+	$APK info -eq abuild-rootbld || die "rootbld: abuild-rootbld package not installed"
 
 	[ $CBUILD = $CHOST ] || die "rootbld: set CBUILD=$CHOST to build for $CHOST"
 
-	if ! [ $CBUILD_ARCH = "$(apk --print-arch)" ]; then
+	if ! [ $CBUILD_ARCH = "$($APK --print-arch)" ]; then
 		# cross-building, so check for binfmt registration
 		local qarch="$(rootbld_qemu_arch)"
 		if ! [ -f "/proc/sys/fs/binfmt_misc/qemu-$qarch" ]; then