diff --git a/artiq/coredevice/sampler.py b/artiq/coredevice/sampler.py
index 7ede3a21f..8cf80f071 100644
--- a/artiq/coredevice/sampler.py
+++ b/artiq/coredevice/sampler.py
@@ -1,4 +1,3 @@
-
 from artiq.language.core import kernel, delay, portable
 from artiq.language.units import ns
 
diff --git a/artiq/examples/kasli_basic/device_db_mitll.py b/artiq/examples/kasli_basic/device_db_mitll.py
index 45f13457b..e7ae94ac4 100644
--- a/artiq/examples/kasli_basic/device_db_mitll.py
+++ b/artiq/examples/kasli_basic/device_db_mitll.py
@@ -115,19 +115,19 @@ for i in range(2):
         "module": "artiq.coredevice.spi2",
         "class": "SPIMaster",
         "arguments": {"channel": 14+3*i+0}
-    },
+    }
     device_db["ttl_zotino{}_ldac".format(i)] = {
         "type": "local",
         "module": "artiq.coredevice.ttl",
         "class": "TTLOut",
         "arguments": {"channel": 14+3*i+1}
-    },
+    }
     device_db["ttl_zotino{}_clr".format(i)] = {
         "type": "local",
         "module": "artiq.coredevice.ttl",
         "class": "TTLOut",
         "arguments": {"channel": 14+3*i+2}
-    },
+    }
     device_db["zotino{}".format(i)] = {
         "type": "local",
         "module": "artiq.coredevice.zotino",