diff --git a/.gitlab/testbed/glinet-b1300.yml b/.gitlab/testbed/glinet-b1300.yml
index a70d6e8879..f2dfecb913 100644
--- a/.gitlab/testbed/glinet-b1300.yml
+++ b/.gitlab/testbed/glinet-b1300.yml
@@ -5,6 +5,6 @@
     DUT_SUBTARGET: generic
     DUT_BOARD: glinet-b1300
     LABGRID_TARGET: glinet-b1300-initramfs
-    TFTP_IMAGE_FILENAME: openwrt-ipq40xx-generic-glinet_gl-b1300-initramfs-fit-uImage.itb
+    TFTP_IMAGE_FILENAME: openwrt-ipq40xx-generic-glinet_gl-b1300-initramfs-fit-zImage.itb
   tags:
     - dut-glinet-b1300
diff --git a/.testbed/labgrid/default.yaml b/.testbed/labgrid/default.yaml
index 786e267ea7..f7ee6cd292 100644
--- a/.testbed/labgrid/default.yaml
+++ b/.testbed/labgrid/default.yaml
@@ -175,7 +175,7 @@ targets:
           - setenv ipaddr 192.168.1.1
         boot_command_delay: 5
         boot_timeout: 90
-        boot_command: tftpboot 0x88000000 openwrt-ipq40xx-generic-glinet_gl-b1300-initramfs-fit-uImage.itb && bootm 0x88000000
+        boot_command: tftpboot 0x88000000 openwrt-ipq40xx-generic-glinet_gl-b1300-initramfs-fit-zImage.itb && bootm 0x88000000
       UBootStrategy: {}
 
   glinet-b1300-nor: