diff --git a/algo/core/windows.cpp b/algo/core/windows.cpp
index d1c6730653756639215f006dc4ff28a3b2ca9896..6fb0bc8ad9560749f128f70e567839e6123bb49c 100644
--- a/algo/core/windows.cpp
+++ b/algo/core/windows.cpp
@@ -266,7 +266,7 @@ json WindowsStorage::computeDiversity(map <string, size_t> nb_segmented) {
     // Shannon's diversity
     jsonDiversity["index_H_entropy"][code] = kv.second;
 
-    // Shannon's equitability
+    // Pielou's evenness J' (also known as Shannon's equitability)
     double nb_seg_nb_seg_m1 = nb_segmented[code] * (nb_segmented[code] - 1);
     jsonDiversity["index_E_equitability"][code] = index_H_entropy[code] / log(nb_segmented[code]) ;
 
diff --git a/browser/js/tools.js b/browser/js/tools.js
index 02a348204c50ddef44235db06f483659cdc2ee78..8c0a15ee36ea0c8ec247ee0da1bcdf3d2fed21fc 100644
--- a/browser/js/tools.js
+++ b/browser/js/tools.js
@@ -941,7 +941,7 @@ function download_csv(csv, filename) {
 function translate_key_diversity(key_diversity){
     var table = {
         "index_H_entropy" :      "Shannon's diversity",
-        "index_E_equitability" : "Shannon's equitability",
+        "index_E_equitability" : "Pielou's evenness",
         "index_Ds_diversity" :   "Simpson's diversity"
     }
     return table[key_diversity]
diff --git a/browser/test/QUnit/testFiles/model_test.js b/browser/test/QUnit/testFiles/model_test.js
index 153c0b8f877e2df86572b094dc977546c7cb03ac..edeb4d62bab5e1540d52cb192a6c2253fea0260e 100644
--- a/browser/test/QUnit/testFiles/model_test.js
+++ b/browser/test/QUnit/testFiles/model_test.js
@@ -752,7 +752,7 @@ QUnit.test("getPointHtmlInfo", function(assert) {
     html_info = m.getPointHtmlInfo(1)
     // each diversity indices has header
     assert.includes(html_info, "<tr><td colspan='5'>Shannon's diversity</td></tr>")
-    assert.includes(html_info, "<tr><td colspan='5'>Shannon's equitability</td></tr>")
+    assert.includes(html_info, "<tr><td colspan='5'>Pielou's evenness</td></tr>")
     assert.includes(html_info, "<tr><td colspan='5'>Simpson's diversity</td></tr>")
     // each present locus id visible
     assert.includes(html_info, '<tr><td colspan=\'5\'>Simpson\'s diversity</td></tr><tr><td> <span class="systemBoxMenu" title="all">x</span> all</td>')
diff --git a/doc/user.md b/doc/user.md
index 2d44fc536b08733a2e16a45905e256cecb936bbb..b3fe52192ce365164019384d71a84f55418d958f 100644
--- a/doc/user.md
+++ b/doc/user.md
@@ -774,16 +774,20 @@ analyzed reads, including the hidden clonotypes.
 
 Several indices are computed on the full list of clonotypes to assess the diversity and overlap of sample(s):
 
-- On one sample, [diversity indices](https://en.wikipedia.org/wiki/Diversity_index) such as
-  Shannon's diversity, Shannon's equitability and Simpson's diversity, as computed by [vijdil-algo](vidjil-algo.md#diversity-measures).
-  Some of these indices have values between 0 (no diversity, one clonotype clusters all analyzed reads)
+- On one sample, *diversity indices* such as
+  [Shannon's diversity](https://en.wikipedia.org/wiki/Diversity_index#Shannon_index),
+  [Pielou's evenness](https://en.wikipedia.org/wiki/Species_evenness),
+  and [Simpson's diversity](https://en.wikipedia.org/wiki/Diversity_index#Simpson_index),
+  as computed by [vijdil-algo](vidjil-algo.md#diversity-measures).
+  Pielou's evenness and Simpson's diversity have values between 0
+  (no diversity, one clonotype clusters all analyzed reads)
   and 1 (full diversity, each analyzed read belongs to a different clonotype).
 
 - On several samples, overlap indexes such as [Morisita's overlap index](https://en.wikipedia.org/wiki/Morisita%27s_overlap_index)
   having values between 0 (no overlap between the two samples)
   and 1 (full overlap, clonotypes in the same proportion in both samples).
 
-Some of these indices are currently shown on the sample information panel (“🛈” next to the sample name in the info panel).
+Some of these indices are shown on the sample information panel (“🛈” next to the sample name in the info panel).
 Contact us if you have other needs.
 
 ## Exporting the full list of clonotypes
diff --git a/doc/vidjil-algo.md b/doc/vidjil-algo.md
index a58123b64bfe5a105118adc525858b92573e62c3..96af1f728848dea90d5ad651daf2f4ee8b5ddcd3 100644
--- a/doc/vidjil-algo.md
+++ b/doc/vidjil-algo.md
@@ -679,7 +679,7 @@ Several [diversity indices](https://en.wikipedia.org/wiki/Diversity_index) are r
 for each germline/locus as well as for the entire data:
 
   - H (`index_H_entropy`): Shannon's diversity
-  - E (`index_E_equitability`): Shannon's equitability
+  - E (`index_E_equitability`): [Pielou's evenness J'](https://en.wikipedia.org/wiki/Species_evenness) (also known as Shannon's equitability)
   - Ds (`index_Ds_diversity`): Simpson's diversity
 
 E ans Ds values are between 0 (no diversity, one clone clusters all analyzed reads)