diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 4a80584ec771..11d53f240a2b 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -147,8 +147,7 @@ snap-pkg:
 PHONY += pacman-pkg
 pacman-pkg:
 	@ln -srf $(srctree)/scripts/package/PKGBUILD $(objtree)/PKGBUILD
-	+objtree="$(realpath $(objtree))" \
-		BUILDDIR="$(realpath $(objtree))/pacman" \
+	+BUILDDIR="$(realpath $(objtree))/pacman" \
 		CARCH="$(UTS_MACHINE)" \
 		KBUILD_MAKEFLAGS="$(MAKEFLAGS)" \
 		KBUILD_REVISION="$(shell $(srctree)/scripts/build-version)" \
diff --git a/scripts/package/PKGBUILD b/scripts/package/PKGBUILD
index e2d9c2601ca9..839cd5e634d2 100644
--- a/scripts/package/PKGBUILD
+++ b/scripts/package/PKGBUILD
@@ -40,7 +40,9 @@ _prologue() {
 	# MAKEFLAGS from makepkg.conf override the ones inherited from kbuild.
 	# Bypass this override with a custom variable.
 	export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
-	cd "${objtree}"
+
+	# Kbuild works in the output directory, where this PKGBUILD is located.
+	cd "$(dirname "${BASH_SOURCE[0]}")"
 }
 
 build() {