diff --git a/build-crosstool-ng b/build-crosstool-ng
index d074727f..5a061c24 100755
--- a/build-crosstool-ng
+++ b/build-crosstool-ng
@@ -38,7 +38,7 @@ def main(args, extra_args=None):
     assert common.run_cmd(
         [
             'make',
-            '-j', str(nproc)
+            '-j', str(nproc),
         ],
     ) == 0
 
@@ -66,7 +66,7 @@ def main(args, extra_args=None):
         [
             common.crosstool_ng_executable,
             'build',
-            '-j', str(nproc)
+            'CT_JOBS={}'.format(str(nproc)),
         ],
         out_file=os.path.join(common.crosstool_ng_build_dir, 'lkmc.log'),
         delete_env=['LD_LIBRARY_PATH'],
diff --git a/run b/run
index 018bb14b..d141a329 100755
--- a/run
+++ b/run
@@ -176,7 +176,7 @@ def main(args, extra_args=None):
                 # Anything smaller than physical blows up as expected, but why can't it auto-detect the right value?
                 cmd += [
                     '--command-line', 'earlyprintk=pl011,0x1c090000 console=ttyAMA0 lpj=19988480 rw loglevel=8 mem={} root=/dev/sda {}'.format(memory, kernel_cli),
-                    '--dtb-file', os.path.join(common.gem5_system_dir, 'arm', 'dt', 'armv{}_gem5_v1_{}cpu.dtb'.format(common.armv, args.cpus)),
+                    '--dtb-filename', os.path.join(common.gem5_system_dir, 'arm', 'dt', 'armv{}_gem5_v1_{}cpu.dtb'.format(common.armv, args.cpus)),
                     '--machine-type', common.machine,
                 ]
                 if not args.baremetal is None: