diff --git a/tests/functional/ppc64/test_mac99.py b/tests/functional/ppc64/test_mac99.py
index dfd9c01371..a3261a8330 100755
--- a/tests/functional/ppc64/test_mac99.py
+++ b/tests/functional/ppc64/test_mac99.py
@@ -7,14 +7,16 @@
 from qemu_test import LinuxKernelTest, Asset
 from qemu_test import exec_command_and_wait_for_pattern
 
-class mac99Test(LinuxKernelTest):
+class Mac99Test(LinuxKernelTest):
 
     ASSET_BR2_MAC99_LINUX = Asset(
-        'https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main/buildroot/qemu_ppc64_mac99-2023.11-8-gdcd9f0f6eb-20240105/vmlinux',
+        ('https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main'
+         '/buildroot/qemu_ppc64_mac99-2023.11-8-gdcd9f0f6eb-20240105/vmlinux'),
         'd59307437e4365f2cced0bbd1b04949f7397b282ef349b7cafd894d74aadfbff')
 
     ASSET_BR2_MAC99_ROOTFS = Asset(
-        'https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main//buildroot/qemu_ppc64_mac99-2023.11-8-gdcd9f0f6eb-20240105/rootfs.ext2',
+        ('https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main'
+         '/buildroot/qemu_ppc64_mac99-2023.11-8-gdcd9f0f6eb-20240105/rootfs.ext2'),
         'bbd5fd8af62f580bc4e585f326fe584e22856572633a8333178ea6d4ed4955a4')
 
     def test_ppc64_mac99_buildroot(self):