diff --git a/include/image-commands.mk b/include/image-commands.mk
index 10b23e027b1..daa01a3d099 100644
--- a/include/image-commands.mk
+++ b/include/image-commands.mk
@@ -214,7 +214,7 @@ define Build/fit
 				-i $(KERNEL_BUILD_DIR)/initrd.cpio$(strip $(call Build/initrd_compression)))) \
 		-a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
 		$(if $(DEVICE_FDT_NUM),-n $(DEVICE_FDT_NUM)) \
-		-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config@1") \
+		-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config-1") \
 		-A $(LINUX_KARCH) -v $(LINUX_VERSION)
 	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage $(if $(findstring external,$(word 3,$(1))),\
 		-E -B 0x1000 $(if $(findstring static,$(word 3,$(1))),-p 0x1000)) -f $@.its $@.new
diff --git a/include/image.mk b/include/image.mk
index 993de5ff53d..cae3e734389 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -139,7 +139,7 @@ endef
 define Image/BuildKernel/MkFIT
 	$(TOPDIR)/scripts/mkits.sh \
 		-D $(1) -o $(KDIR)/fit-$(1).its -k $(2) $(if $(3),-d $(3)) -C $(4) -a $(5) -e $(6) \
-		-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config@1") \
+		-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config-1") \
 		-A $(LINUX_KARCH) -v $(LINUX_VERSION)
 	PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $(KDIR)/fit-$(1).its $(KDIR)/fit-$(1)$(7).itb
 endef