diff --git a/images/Makefile.imx b/images/Makefile.imx
index 53d4ac8..e5558b1 100644
--- a/images/Makefile.imx
+++ b/images/Makefile.imx
@@ -378,12 +378,12 @@
 
 pblb-$(CONFIG_MACH_ZII_IMX8MQ_DEV) += start_zii_imx8mq_dev
 CFG_start_zii_imx8mq_dev.pblb.imximg = $(board)/zii-imx8mq-dev/flash-header-zii-imx8mq-dev.imxcfg
-MAX_PBL_MEMORY_SIZE_start_zii_imx8mq_dev.pbl = 0x3f000
+MAX_PBL_MEMORY_SIZE_start_zii_imx8mq_dev = 0x3f000
 FILE_barebox-zii-imx8mq-dev.img = start_zii_imx8mq_dev.pblb.imximg
 image-$(CONFIG_MACH_ZII_IMX8MQ_DEV) += barebox-zii-imx8mq-dev.img
 
 pblb-$(CONFIG_MACH_PHYTEC_SOM_IMX8MQ) += start_phytec_phycore_imx8mq
 CFG_start_phytec_phycore_imx8mq.pblb.imximg = $(board)/phytec-som-imx8mq/flash-header-phycore-imx8mq.imxcfg
-MAX_PBL_MEMORY_SIZE_start_phytec_phycore_imx8mq.pbl = 0x3f000
+MAX_PBL_MEMORY_SIZE_start_phytec_phycore_imx8mq = 0x3f000
 FILE_barebox-phytec-phycore-imx8mq.img = start_phytec_phycore_imx8mq.pblb.imximg
 image-$(CONFIG_MACH_PHYTEC_SOM_IMX8MQ) += barebox-phytec-phycore-imx8mq.img