diff --git a/capa/features/extractors/binexport2/helpers.py b/capa/features/extractors/binexport2/helpers.py
index a877d31de..e4e7f7b76 100644
--- a/capa/features/extractors/binexport2/helpers.py
+++ b/capa/features/extractors/binexport2/helpers.py
@@ -477,7 +477,7 @@ def from_str(cls, query: str):
 
                 # emit operands in this order to match
                 # how BinExport2 expressions are flatted
-                # by 
+                # by get_operand_expressions
                 if has_postindex_writeback:
                     operands.append(("!", "[") + parts)
                 else: