diff --git a/capa/features/extractors/common.py b/capa/features/extractors/common.py
index 39411bde..6beaa72d 100644
--- a/capa/features/extractors/common.py
+++ b/capa/features/extractors/common.py
@@ -68,7 +68,7 @@ def extract_format(buf) -> Iterator[Tuple[Feature, Address]]:
 def extract_arch(buf) -> Iterator[Tuple[Feature, Address]]:
     if buf.startswith(MATCH_PE):
         yield from capa.features.extractors.pefile.extract_file_arch(pe=pefile.PE(data=buf))
-    
+
     elif buf.startswith(MATCH_RESULT):
         yield Arch(ARCH_ANY), NO_ADDRESS