diff --git a/pdf_build_src/process_markdowns.py b/pdf_build_src/process_markdowns.py
index 1147f36fe7..5dc2f4f6d1 100644
--- a/pdf_build_src/process_markdowns.py
+++ b/pdf_build_src/process_markdowns.py
@@ -16,7 +16,7 @@
 import numpy as np
 
 sys.path.append("../tools/")
-from schemacode import macros
+from schemacode import macros  # noqa: F401 (used in "eval" call later on)
 
 
 def run_shell_cmd(command):