diff --git a/sdk_container/src/third_party/portage-stable/dev-build/make/make-4.4.1-r100.ebuild b/sdk_container/src/third_party/portage-stable/dev-build/make/make-4.4.1-r100.ebuild
index 816b063046..6c103414ba 100644
--- a/sdk_container/src/third_party/portage-stable/dev-build/make/make-4.4.1-r100.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-build/make/make-4.4.1-r100.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -93,7 +93,7 @@ src_compile() {
 }
 
 src_install() {
-	use doc && HTML_DOCS=( doc/make.html/. ) DOCS="$DOCS doc/make.pdf"
+	use doc && HTML_DOCS=( doc/make.html/. ) DOCS="${DOCS} doc/make.pdf"
 	default
 
 	dosym gmake /usr/bin/make
diff --git a/sdk_container/src/third_party/portage-stable/dev-build/make/make-9999.ebuild b/sdk_container/src/third_party/portage-stable/dev-build/make/make-9999.ebuild
index 274fa4a9c4..f23c2c0c37 100644
--- a/sdk_container/src/third_party/portage-stable/dev-build/make/make-9999.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-build/make/make-9999.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -93,7 +93,7 @@ src_compile() {
 }
 
 src_install() {
-	use doc && HTML_DOCS=( doc/make.html/. ) DOCS="$DOCS doc/make.pdf"
+	use doc && HTML_DOCS=( doc/make.html/. ) DOCS="${DOCS} doc/make.pdf"
 	default
 
 	dosym gmake /usr/bin/make