diff --git a/apis/python/src/tiledbvcf/allele_frequency.py b/apis/python/src/tiledbvcf/allele_frequency.py
index 197ba5b62..588e1f997 100644
--- a/apis/python/src/tiledbvcf/allele_frequency.py
+++ b/apis/python/src/tiledbvcf/allele_frequency.py
@@ -1,7 +1,7 @@
 import pandas
 
 
-def read_allele_frequency(dataset_uri: str, region: str) -> pandas.DataFrame():
+def read_allele_frequency(dataset_uri: str, region: str) -> pandas.DataFrame:
     """
     Read variant status