diff --git a/Makefile b/Makefile
index 8955a48..a17db5d 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,10 @@ REGISTRY_USERNAME ?= talos-rpi5
 
 TAG ?= $(shell git describe --tags --exact-match)
 
-EXTENSIONS ?= ghcr.io/siderolabs/gvisor:20250505.0@sha256:d7503b59603f030b972ceb29e5e86979e6c889be1596e87642291fee48ce380c
+EXTENSIONS ?= \
+	ghcr.io/siderolabs/gvisor:20250505.0@sha256:d7503b59603f030b972ceb29e5e86979e6c889be1596e87642291fee48ce380c \
+	ghcr.io/siderolabs/iscsi-tools:v0.2.0 \
+	ghcr.io/siderolabs/util-linux-tools:2.41.1
 
 PKG_REPOSITORY = https://github.com/siderolabs/pkgs.git
 TALOS_REPOSITORY = https://github.com/siderolabs/talos.git
@@ -105,7 +108,7 @@ installer:
 			REGISTRY=$(REGISTRY) USERNAME=$(REGISTRY_USERNAME) PUSH=true \
 			PKG_KERNEL=$(REGISTRY)/$(REGISTRY_USERNAME)/kernel:$(PKGS_TAG) \
 			INSTALLER_ARCH=arm64 PLATFORM=linux/arm64 \
-			IMAGER_ARGS="--overlay-name=rpi5 --overlay-image=$(REGISTRY)/$(REGISTRY_USERNAME)/sbc-raspberrypi5:$(SBCOVERLAY_TAG) --system-extension-image=$(EXTENSIONS)" \
+			IMAGER_ARGS="--overlay-name=rpi5 --overlay-image=$(REGISTRY)/$(REGISTRY_USERNAME)/sbc-raspberrypi5:$(SBCOVERLAY_TAG) $(foreach ext,$(EXTENSIONS),--system-extension-image=$(ext))" \
 			kernel initramfs imager installer-base installer && \
 		docker \
 			run --rm -t -v ./_out:/out -v /dev:/dev --privileged $(REGISTRY)/$(REGISTRY_USERNAME)/imager:$(TALOS_TAG) \
@@ -113,7 +116,7 @@ installer:
 			--base-installer-image="$(REGISTRY)/$(REGISTRY_USERNAME)/installer:$(TALOS_TAG)" \
 			--overlay-name="rpi5" \
 			--overlay-image="$(REGISTRY)/$(REGISTRY_USERNAME)/sbc-raspberrypi5:$(SBCOVERLAY_TAG)" \
-			--system-extension-image="$(EXTENSIONS)"
+			$(foreach ext,$(EXTENSIONS),--system-extension-image="$(ext)")