diff --git a/src/print_tasks.py b/src/print_tasks.py
index ef8bd54..3d0c383 100644
--- a/src/print_tasks.py
+++ b/src/print_tasks.py
@@ -34,7 +34,7 @@ def main(
         ValueError(f"{years} is not a valid value for --years")
 
     tasks = [
-        {"tile-id": ",".join(tile[0]), "year": year, "version": version}
+        {"tile-id": ",".join([str(i) for i in tile[0]]), "year": year, "version": version}
         for tile, year in product(list(tiles), years)
     ]