diff --git a/warehouse/utils/wheel.py b/warehouse/utils/wheel.py
index bcce3cbb46a4..6bc71c8d8045 100644
--- a/warehouse/utils/wheel.py
+++ b/warehouse/utils/wheel.py
@@ -94,7 +94,7 @@ def filename_to_pretty_tags(filename: str) -> list[str]:
             pretty_tags.add(f"CPython {version}")
         else:
             with sentry_sdk.push_scope() as scope:
-                scope.fingerprint = str(tag)
+                scope.fingerprint = [str(tag)]
                 sentry_sdk.capture_message(
                     f"wheel has unrecognized interpreter tag: {tag}. "
                     f"Filename: {filename}."