diff --git a/src/fmripost_aroma/interfaces/confounds.py b/src/fmripost_aroma/interfaces/confounds.py
index 99645d4..53cb13a 100644
--- a/src/fmripost_aroma/interfaces/confounds.py
+++ b/src/fmripost_aroma/interfaces/confounds.py
@@ -140,6 +140,7 @@ class _ICADenoiseOutputSpec(TraitedSpec):
 
 
 class ICADenoise(SimpleInterface):
+    """Denoise data using ICA components."""
 
     input_spec = _ICADenoiseInputSpec
     output_spec = _ICADenoiseOutputSpec