diff --git a/fs/common.mk b/fs/common.mk
index f9dababb2c..92be00cc0c 100644
--- a/fs/common.mk
+++ b/fs/common.mk
@@ -36,7 +36,10 @@ ROOTFS_DEVICE_TABLE = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE))
 
 define ROOTFS_TARGET_INTERNAL
 
-$(BINARIES_DIR)/rootfs.$(1): $(ROOTFS_$(2)_DEPENDENCIES) host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma)
+# extra deps
+$(eval ROOTFS_$(2)_DEPENDENCIES += host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma))
+
+$(BINARIES_DIR)/rootfs.$(1): $(ROOTFS_$(2)_DEPENDENCIES)
 	@$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
 	$(foreach hook,$(ROOTFS_$(2)_PRE_GEN_HOOKS),$(call $(hook))$(sep))
 	rm -f $(FAKEROOT_SCRIPT)
@@ -62,7 +65,7 @@ ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
 endif
 
 rootfs-$(1)-show-depends:
-	@echo $(ROOTFS_$(2)_DEPENDENCIES) host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma)
+	@echo $(ROOTFS_$(2)_DEPENDENCIES)
 
 rootfs-$(1): $(BINARIES_DIR)/rootfs.$(1) $(ROOTFS_$(2)_POST_TARGETS)