diff --git a/snakemake_interface_report_plugins/interfaces.py b/snakemake_interface_report_plugins/interfaces.py
index 6bd309e..d5fb4f9 100644
--- a/snakemake_interface_report_plugins/interfaces.py
+++ b/snakemake_interface_report_plugins/interfaces.py
@@ -139,6 +139,10 @@ def name(self) -> str: ...
     @abstractmethod
     def job(self) -> JobReportInterface: ...
 
+    @property
+    @abstractmethod
+    def aux_files(self) -> List[Path]: ...
+
 
 class DAGReportInterface(ABC):
     @abstractmethod
diff --git a/snakemake_interface_report_plugins/reporter.py b/snakemake_interface_report_plugins/reporter.py
index a7282be..8f94bad 100644
--- a/snakemake_interface_report_plugins/reporter.py
+++ b/snakemake_interface_report_plugins/reporter.py
@@ -9,6 +9,7 @@
 from snakemake_interface_report_plugins.interfaces import (
     CategoryInterface,
     ConfigFileRecordInterface,
+    FileRecordInterface,
     JobRecordInterface,
     RuleRecordInterface,
 )
@@ -21,7 +22,7 @@ def __init__(
         self,
         rules: Mapping[str, RuleRecordInterface],
         results: Mapping[
-            CategoryInterface, Mapping[CategoryInterface, List[RuleRecordInterface]]
+            CategoryInterface, Mapping[CategoryInterface, List[FileRecordInterface]]
         ],
         configfiles: List[ConfigFileRecordInterface],
         jobs: List[JobRecordInterface],