diff --git a/ontopy/factpluspluswrapper/factppgraph.py b/ontopy/factpluspluswrapper/factppgraph.py
index 92fd47732..6ace01775 100644
--- a/ontopy/factpluspluswrapper/factppgraph.py
+++ b/ontopy/factpluspluswrapper/factppgraph.py
@@ -97,7 +97,11 @@ def clean_base(self):
         `base_iri`.
         """
         inferred = self.inferred
-        for subject, predicate, obj in inferred.triples(
+        for (
+            subject,
+            predicate,
+            obj,
+        ) in inferred.triples(  # pylint: disable=not-an-iterable
             (None, RDF.type, OWL.Ontology)
         ):
             inferred.remove((subject, predicate, obj))
diff --git a/ontopy/factpluspluswrapper/sync_factpp.py b/ontopy/factpluspluswrapper/sync_factpp.py
index e92b2b906..ec8038214 100644
--- a/ontopy/factpluspluswrapper/sync_factpp.py
+++ b/ontopy/factpluspluswrapper/sync_factpp.py
@@ -87,7 +87,13 @@ def sync_reasoner_factpp(
         new_equivs = defaultdict(list)
         entity_2_type = {}
 
-        for subject, predicate, obj in graph2.triples((None, None, None)):
+        for (
+            subject,
+            predicate,
+            obj,
+        ) in graph2.triples(  # pylint: disable=not-an-iterable
+            (None, None, None)
+        ):
             if (
                 isinstance(subject, URIRef)
                 and predicate in OWL_2_TYPE