diff --git a/util/manibuilder/Makefile.env b/util/manibuilder/Makefile.env
index ee60fc6..39aabde 100644
--- a/util/manibuilder/Makefile.env
+++ b/util/manibuilder/Makefile.env
@@ -28,3 +28,10 @@
 	$(filter alpine\:%, $(MULTIARCH_TAGS)) \
 
 $(NO_LIBJAYLINK_TAGS): MAKEARGS+=CONFIG_JLINK_SPI=no
+
+# Additionally install Clang
+CLANG_TAGS := \
+	debian-debootstrap\:armhf-bullseye debian-debootstrap\:i386-bullseye \
+	arm64v8/debian\:bookworm amd64/debian\:bookworm \
+
+$(addsuffix -build,$(CLANG_TAGS)): DOCKER_BUILD_ARGS+=--build-arg ADDITIONAL_PACKAGES=clang