diff --git a/fastplotlib/widgets/histogram_lut.py b/fastplotlib/widgets/histogram_lut.py
index 0d8ca9f15..64feb8df6 100644
--- a/fastplotlib/widgets/histogram_lut.py
+++ b/fastplotlib/widgets/histogram_lut.py
@@ -180,7 +180,8 @@ def _calculate_histogram(self, data):
         hist_scaled = hist_flanked / (hist_flanked.max() / 100)
 
         if edges_flanked.size > hist_scaled.size:
-            edges_flanked = edges_flanked[:-1]
+            # we don't care about accuracy here so if it's off by 1-2 bins that's fine
+            edges_flanked = edges_flanked[:hist_scaled.size]
 
         return hist, edges, hist_scaled, edges_flanked