diff --git a/doc/modules/qualitymetrics/firing_range.rst b/doc/modules/qualitymetrics/firing_range.rst
index 1b82c7540f..3fd3d53573 100644
--- a/doc/modules/qualitymetrics/firing_range.rst
+++ b/doc/modules/qualitymetrics/firing_range.rst
@@ -6,7 +6,7 @@ Calculation
 -----------
 
 The firing range indicates the dispersion of the firing rate of a unit across the recording. It is computed by
-taking the difference between the 95-th and 5th percentiles firing rates computed over short time bins (e.g. 10 s).
+taking the difference between the 95th percentile's firing rate and the 5th percentile's firing rate computed over short time bins (e.g. 10 s).