diff --git a/src/cristallina/utils.py b/src/cristallina/utils.py
index 0cfbef5..0bed812 100644
--- a/src/cristallina/utils.py
+++ b/src/cristallina/utils.py
@@ -144,7 +144,7 @@ def process_run(run_number, rois,detector='JF16T03V01', calculate =None, only_sh
 
 def find_offset(run_number, ch1,ch2, offsets=range(-7,7),step=0,verbose = False):
     """Attempts to find an ideal offset between pids of two channels. Offset is added to channel_2.
-    Returns best offset, best_correlation, [all offsets, all correlations].""""
+    Returns best offset, best_correlation, [all offsets, all correlations]."""
     scan = scan_info(run_number)
     d = scan[step]
     assert len(d[ch1].shape) ==1, "Channel 2 has more than 1 dimension, can't correlate"