diff --git a/include/image.mk b/include/image.mk
index 0fbaf66dd14..38005b2ab2b 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -41,6 +41,9 @@ KDIR=$(KERNEL_BUILD_DIR)
 KDIR_TMP=$(KDIR)/tmp
 DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts
 
+ifeq ($(EXTRA_IMAGE_NAME),)
+EXTRA_IMAGE_NAME:=$(call qstrip,$(CONFIG_EXTRA_IMAGE_NAME))
+endif
 IMG_PREFIX_EXTRA:=$(if $(EXTRA_IMAGE_NAME),$(call sanitize,$(EXTRA_IMAGE_NAME))-)
 IMG_PREFIX_VERNUM:=$(if $(CONFIG_VERSION_FILENAMES),$(call sanitize,$(VERSION_NUMBER))-)
 IMG_PREFIX_VERCODE:=$(if $(CONFIG_VERSION_CODE_FILENAMES),$(call sanitize,$(VERSION_CODE))-)
diff --git a/package/base-files/image-config.in b/package/base-files/image-config.in
index 67ef4d415a1..0f713841903 100644
--- a/package/base-files/image-config.in
+++ b/package/base-files/image-config.in
@@ -5,6 +5,14 @@
 # See /LICENSE for more information.
 #
 
+config EXTRA_IMAGE_NAME
+	string
+	prompt "Extra image filename" if IMAGEOPT
+	default ""
+	help
+		Add this to the output image filenames, to distinguish between
+		different builds for the same hardware type.
+
 config TARGET_DEFAULT_LAN_IP_FROM_PREINIT
 	bool "Use preinit IP configuration as default LAN IP" if IMAGEOPT
 	default n