diff --git a/linux/linux.mk b/linux/linux.mk
index 8d14f41c6b..0c78d824e1 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -155,9 +155,9 @@ LINUX_IMAGE_NAME = zImage.epapr
 else ifeq ($(BR2_LINUX_KERNEL_APPENDED_ZIMAGE),y)
 LINUX_IMAGE_NAME = zImage
 else ifeq ($(BR2_LINUX_KERNEL_CUIMAGE),y)
-LINUX_IMAGE_NAME = cuImage.$(KERNEL_DTS_NAME)
+LINUX_IMAGE_NAME = cuImage.$(firstword $(KERNEL_DTS_NAME))
 else ifeq ($(BR2_LINUX_KERNEL_SIMPLEIMAGE),y)
-LINUX_IMAGE_NAME = simpleImage.$(KERNEL_DTS_NAME)
+LINUX_IMAGE_NAME = simpleImage.$(firstword $(KERNEL_DTS_NAME))
 else ifeq ($(BR2_LINUX_KERNEL_IMAGE),y)
 LINUX_IMAGE_NAME = Image
 else ifeq ($(BR2_LINUX_KERNEL_LINUX_BIN),y)