diff --git a/netbox/ipam/api/serializers.py b/netbox/ipam/api/serializers.py
index c2cf38fe7..40b779ccc 100644
--- a/netbox/ipam/api/serializers.py
+++ b/netbox/ipam/api/serializers.py
@@ -138,7 +138,7 @@ class AggregateSerializer(NetBoxModelSerializer):
     family = ChoiceField(choices=IPAddressFamilyChoices, read_only=True)
     rir = NestedRIRSerializer()
     tenant = NestedTenantSerializer(required=False, allow_null=True)
-    prefix = serializers.CharField()
+    prefix = IPAddressField()
 
     class Meta:
         model = Aggregate
@@ -306,7 +306,7 @@ class PrefixSerializer(NetBoxModelSerializer):
     role = NestedRoleSerializer(required=False, allow_null=True)
     children = serializers.IntegerField(read_only=True)
     _depth = serializers.IntegerField(read_only=True)
-    prefix = serializers.CharField()
+    prefix = IPAddressField()
 
     class Meta:
         model = Prefix