diff --git a/api/caching/tasks.py b/api/caching/tasks.py
index 0af20b401c0..d6e046267cb 100644
--- a/api/caching/tasks.py
+++ b/api/caching/tasks.py
@@ -122,15 +122,15 @@ def update_storage_usage_cache(target_id, target_guid, per_page=500000):
 
 
 def compute_storage_usage_total(target_obj, per_page=500000):
-    sql = """SELECT count(file_page.size), sum(file_page.size) from (
-        SELECT version.size AS size
-        FROM osf_basefileversionsthrough AS obfnv
-        LEFT JOIN osf_basefilenode AS file ON obfnv.basefilenode_id = file.id
-        LEFT JOIN osf_fileversion AS version ON obfnv.fileversion_id = version.id
+    sql = """
+        SELECT count(size), sum(size) from
+        (SELECT size FROM osf_basefileversionsthrough AS obfnv
+        LEFT JOIN osf_basefilenode file ON obfnv.basefilenode_id = file.id
+        LEFT JOIN osf_fileversion version ON obfnv.fileversion_id = version.id
         WHERE file.provider = 'osfstorage'
         AND file.deleted_on IS NULL
-        AND file.target_object_id=%(target_id)s
-        AND file.target_content_type_id = %(target_content_type_id)s
+        AND file.target_object_id=%(target_pk)s
+        AND file.target_content_type_id = %(target_content_type_pk)s
         ORDER BY version.id
         LIMIT %(per_page)s OFFSET %(offset)s
     ) file_page
@@ -142,8 +142,8 @@ def compute_storage_usage_total(target_obj, per_page=500000):
         while last_count:
             cursor.execute(
                 sql, {
-                    'target_id': target_obj.pk,
-                    'target_content_type_id': ContentType.objects.get_for_model(target_obj).pk,
+                    'target_pk': target_obj.pk,
+                    'target_content_type_pk': ContentType.objects.get_for_model(target_obj).pk,
                     'per_page': per_page,
                     'offset': offset,
                 },