diff --git a/snuba/snuba_migrations/events_analytics_platform/0019_add_project_id_index_back.py b/snuba/snuba_migrations/events_analytics_platform/0019_add_project_id_index_back.py
new file mode 100644
index 0000000000..9dd367d52f
--- /dev/null
+++ b/snuba/snuba_migrations/events_analytics_platform/0019_add_project_id_index_back.py
@@ -0,0 +1,35 @@
+from typing import Sequence
+
+from snuba.clusters.storage_sets import StorageSetKey
+from snuba.migrations import migration, operations
+from snuba.migrations.operations import SqlOperation
+
+storage_set_name = StorageSetKey.EVENTS_ANALYTICS_PLATFORM
+local_table_name = "eap_spans_2_local"
+
+
+class Migration(migration.ClickhouseNodeMigration):
+    blocking = False
+
+    def forwards_ops(self) -> Sequence[SqlOperation]:
+        return [
+            operations.AddIndex(
+                storage_set=StorageSetKey.EVENTS_ANALYTICS_PLATFORM,
+                table_name=local_table_name,
+                index_name="bf_project_id",
+                index_expression="project_id",
+                index_type="bloom_filter",
+                granularity=1,
+                target=operations.OperationTarget.LOCAL,
+            ),
+        ]
+
+    def backwards_ops(self) -> Sequence[SqlOperation]:
+        return [
+            operations.DropIndex(
+                storage_set=StorageSetKey.EVENTS_ANALYTICS_PLATFORM,
+                table_name=local_table_name,
+                index_name="bf_project_id",
+                target=operations.OperationTarget.LOCAL,
+            ),
+        ]