diff --git a/gstlal-ugly/gst/lal/gstlal_interpolator.h b/gstlal-ugly/gst/lal/gstlal_interpolator.h
index f1946950d06ff5d9c14120e689c3d6c5fac05901..7b31c8b77586961264a85c0b0a66ac597b22c21e 100644
--- a/gstlal-ugly/gst/lal/gstlal_interpolator.h
+++ b/gstlal-ugly/gst/lal/gstlal_interpolator.h
@@ -71,7 +71,7 @@ struct _GSTLALInterpolator {
 	GstBaseTransform element;
 
 	GstAudioInfo audio_info;
-        GstAudioAdapter *adapter;
+	GstAudioAdapter *adapter;
 
 	gint inrate;
 	gint outrate;
@@ -109,7 +109,7 @@ struct _GSTLALInterpolator {
 
 
 struct _GSTLALInterpolatorClass {
-        GstBaseTransformClass parent_class;
+	GstBaseTransformClass parent_class;
 };