diff --git a/nuad/constraints.py b/nuad/constraints.py
index aa6e9d88..713dcc8b 100644
--- a/nuad/constraints.py
+++ b/nuad/constraints.py
@@ -5035,7 +5035,7 @@ def evaluate(seqs: Tuple[str, ...], domain_pair: DomainPair | None) -> Result:
                                 pairs=pairs)
 
 
-def nupack_strand_pair_constraint_by_number_matching_domains(
+def nupack_strand_pair_constraints_by_number_matching_domains(
         thresholds: Dict[int, float],
         temperature: float = nv.default_temperature,
         sodium: float = nv.default_sodium,