diff --git a/src/sentry/statistical_detectors/detector.py b/src/sentry/statistical_detectors/detector.py
index 4de17833ebfca9..56383af5060aea 100644
--- a/src/sentry/statistical_detectors/detector.py
+++ b/src/sentry/statistical_detectors/detector.py
@@ -13,7 +13,7 @@
 
 from sentry import options
 from sentry.api.serializers.snuba import SnubaTSResultSerializer
-from sentry.issues.ingest import process_occurrence_data
+from sentry.issues.ingest import hash_fingerprint
 from sentry.issues.producer import PayloadType, produce_occurrence_to_kafka
 from sentry.issues.status_change_consumer import bulk_get_groups_from_fingerprints
 from sentry.issues.status_change_message import StatusChangeMessage
@@ -636,8 +636,6 @@ def generate_fingerprint(regression_type: RegressionType, name: str | int) -> st
 
 
 def generate_issue_group_key(project_id: int, fingerprint: str) -> tuple[int, tuple[str, ...]]:
-    data = {
-        "fingerprint": [fingerprint],
-    }
-    process_occurrence_data(data)
-    return project_id, tuple(data["fingerprint"])
+    # Hash the fingerprint to match what's stored in GroupHash during issue creation
+    hashed_fingerprints = hash_fingerprint([fingerprint])
+    return project_id, tuple(hashed_fingerprints)