diff --git a/phys2denoise/metrics/chest_belt.py b/phys2denoise/metrics/chest_belt.py
index e6bb51e..85be77c 100644
--- a/phys2denoise/metrics/chest_belt.py
+++ b/phys2denoise/metrics/chest_belt.py
@@ -317,4 +317,4 @@ def respiratory_phase(resp, sample_rate, n_scans, slice_timings, t_r):
 
         phase_resp[:, i_slice] = phase_resp_crSlice
 
-    return phase_resp
\ No newline at end of file
+    return phase_resp