diff --git a/rules/S7158/java/rule.adoc b/rules/S7158/java/rule.adoc
index 7eb6bab3efe..afec24a5a7b 100644
--- a/rules/S7158/java/rule.adoc
+++ b/rules/S7158/java/rule.adoc
@@ -1,6 +1,7 @@
 == Why is this an issue?
 
 Calling `String.isEmpty()` clearly communicates the code's intention, which is to test if the string is empty. Using `String.length() == 0` is less direct and makes the code less readable.
+This preference for `isEmpty()` extends to all `CharSequence` objects, including `StringBuilder` and `StringBuffer`.
 
 == How to fix it
 
@@ -13,6 +14,12 @@ if ("string".length() == 0) { /* … */ } // Noncompliant
 
 if ("string".length() > 0) { /* … */ } // Noncompliant
 ----
+[source,java,diff-id=2,diff-type=noncompliant]
+----
+StringBuilder sb = new StringBuilder();
+...
+if (sb.length() == 0) { /* … */ } // Noncompliant
+----
 
 ==== Compliant solution
 [source,java,diff-id=1,diff-type=compliant]
@@ -21,6 +28,12 @@ if ("string".isEmpty()){ /* … */ }
 
 if (!"string".isEmpty()){ /* … */ }
 ----
+[source,java,diff-id=2,diff-type=compliant]
+----
+StringBuilder sb = new StringBuilder();
+...
+if (sb.isEmpty()) { /* … */ }
+----
 
 == Resources
 === Documentation