diff --git a/src/tools/interop/idt/discovery/dnssd.py b/src/tools/interop/idt/discovery/dnssd.py
index 6c8735901af0c6..cbecb931fd76b0 100644
--- a/src/tools/interop/idt/discovery/dnssd.py
+++ b/src/tools/interop/idt/discovery/dnssd.py
@@ -42,7 +42,7 @@ def __init__(self, artifact_dir: str) -> None:
         self.logger = logger
         self.discovered_matter_devices: [str, ServiceInfo] = {}
 
-    def write_log(self, line: str, log_name:str) -> None:
+    def write_log(self, line: str, log_name: str) -> None:
         with open(self.create_device_log_name(log_name), "a+") as log_file:
             log_file.write(line)
 
diff --git a/src/tools/interop/idt/utils/host_platform.py b/src/tools/interop/idt/utils/host_platform.py
index c92d69567534b8..116c521456a419 100644
--- a/src/tools/interop/idt/utils/host_platform.py
+++ b/src/tools/interop/idt/utils/host_platform.py
@@ -27,6 +27,7 @@
 
 logger = log.get_logger(__file__)
 
+
 def is_mac():
     p = host_platform.platform().lower()
     return "darwin" in p or "mac" in p