diff --git a/plugins/analysis/icu/src/main/java/org/elasticsearch/index/analysis/ICUNormalizer2Filter.java b/plugins/analysis/icu/src/main/java/org/elasticsearch/index/analysis/ICUNormalizer2Filter.java
index e43b5b0887c..86767efbeb0 100644
--- a/plugins/analysis/icu/src/main/java/org/elasticsearch/index/analysis/ICUNormalizer2Filter.java
+++ b/plugins/analysis/icu/src/main/java/org/elasticsearch/index/analysis/ICUNormalizer2Filter.java
@@ -42,11 +42,7 @@ import java.io.IOException;
* in a language-independent way for search:
*
* - The case folding that it does can be seen as a replacement for
- * LowerCaseFilter: For example, it handles cases such as the Greek sigma, so that
- * "Μάϊος" and "ΜΆΪΟΣ" will match correctly.
- *
- The normalization will standardizes different forms of the same
- * character in Unicode. For example, CJK full-width numbers will be standardized
- * to their ASCII forms.
+ * LowerCaseFilter.
*
- Ignorables such as Zero-Width Joiner and Variation Selectors are removed.
* These are typically modifier characters that affect display.
*