diff --git a/utils/genrandconfig b/utils/genrandconfig
index 8437d6342d..597602f257 100755
--- a/utils/genrandconfig
+++ b/utils/genrandconfig
@@ -252,7 +252,7 @@ async def fixup_config(sysinfo, configfile):
 
     if 'BR2_LINUX_KERNEL=y\n' in configlines and \
        'BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y\n' in configlines:
-        configlines.remove('BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y')
+        configlines.remove('BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y\n')
 
     if 'BR2_PACKAGE_LINUX_BACKPORTS=y\n' in configlines and \
        'BR2_PACKAGE_LINUX_BACKPORTS_USE_CUSTOM_CONFIG=y\n' in configlines and \