diff --git a/src/rules/team/rank.py b/src/rules/team/rank.py
index 41f712d..ebfae74 100644
--- a/src/rules/team/rank.py
+++ b/src/rules/team/rank.py
@@ -152,6 +152,8 @@ def _sort_by_project_rank(self):
         Blocks are switch around, but a block can only be switched
         with a block of the same parent project.
         """
+        if not self.blocks:
+            return
         rank_field_id = self.blocks[0].issues[0].raw["Context"]["Field Ids"]["Rank"]
 
         # For each project, generate a ranked list of issues