diff --git a/src/spikeinterface/core/recording_tools.py b/src/spikeinterface/core/recording_tools.py
index 30cd54473c..f649e60b28 100644
--- a/src/spikeinterface/core/recording_tools.py
+++ b/src/spikeinterface/core/recording_tools.py
@@ -133,7 +133,7 @@ def write_binary_recording(
 
         # create a file with file_size_bytes
         file = open(file_path, "wb+")
-        if platform.system() == 'Windows':
+        if platform.system() == "Windows":
             file.seek(file_size_bytes - 1)
             file.write(b"\0")
         else: