diff --git a/src/sentry/similarity/__init__.py b/src/sentry/similarity/__init__.py
index ea68a8507cc943..3b9d58d4f02165 100644
--- a/src/sentry/similarity/__init__.py
+++ b/src/sentry/similarity/__init__.py
@@ -121,7 +121,7 @@ def _make_index_backend(cluster=None):
         'message:message:character-shingles': MessageFeature(
             lambda message: text_shingle(
                 5,
-                message.message,
+                message.formatted,
             ),
         ),
     },