diff --git a/java/ql/src/semmle/code/java/security/LdapInjection.qll b/java/ql/src/semmle/code/java/security/LdapInjection.qll
index 203256bd4dd..c2a25e43cd6 100644
--- a/java/ql/src/semmle/code/java/security/LdapInjection.qll
+++ b/java/ql/src/semmle/code/java/security/LdapInjection.qll
@@ -19,6 +19,10 @@ abstract class LdapInjectionSanitizer extends DataFlow::Node { }
  * Extend this class to add additional taint steps that should apply to the LdapInjectionFlowConfig.
  */
 class LdapInjectionAdditionalTaintStep extends TaintTracking::Unit {
+  /**
+   * Holds if the step from `node1` to `node2` should be considered a taint
+   * step for the LdapInjectionFlowConfig configuration.
+   */
   abstract predicate step(DataFlow::Node node1, DataFlow::Node node2);
 }