diff --git a/lgtm.yml b/lgtm.yml
new file mode 100644
index 0000000000..cbdd9e90c1
--- /dev/null
+++ b/lgtm.yml
@@ -0,0 +1,3 @@
+# https://github.com/github/codeql/issues/6517
+queries:
+  - exclude: py/unused-import  
diff --git a/pdf_build_src/process_markdowns.py b/pdf_build_src/process_markdowns.py
index 53d9481d29..a1e5bfd38e 100644
--- a/pdf_build_src/process_markdowns.py
+++ b/pdf_build_src/process_markdowns.py
@@ -16,7 +16,8 @@
 import numpy as np
 
 sys.path.append("../tools/")
-from mkdocs_macros_bids import macros  # noqa   (used in "eval" call later on)
+# functions from module macros are called by eval() later on
+from mkdocs_macros_bids import macros  # noqa: F401
 
 
 def run_shell_cmd(command):