diff --git a/tools/syz-covermerger/init_db.sh b/pkg/coveragedb/init_db.sh
similarity index 90%
rename from tools/syz-covermerger/init_db.sh
rename to pkg/coveragedb/init_db.sh
index 75a4319f3541..2e335163ae0a 100755
--- a/tools/syz-covermerger/init_db.sh
+++ b/pkg/coveragedb/init_db.sh
@@ -21,12 +21,9 @@ CREATE TABLE
     "hitcounts" bigint[],
     "manager" text,
   PRIMARY KEY
-    (session, filepath) );')
+    (session, manager, filepath) );')
 gcloud spanner databases ddl update $db --instance=syzbot --project=syzkaller \
  --ddl="$create_table"
-echo "creating 'files' index"
-gcloud spanner databases ddl update $db --instance=syzbot --project=syzkaller \
- --ddl="CREATE INDEX files_session_manager ON files (session, manager);"
 
 echo "drop table 'merge_history' if exists"
 gcloud spanner databases ddl update $db --instance=syzbot --project=syzkaller \