diff --git a/core/src/main/java/org/jruby/runtime/builtin/IRubyObject.java b/core/src/main/java/org/jruby/runtime/builtin/IRubyObject.java
index 25ea8a01391..182fa6420f9 100644
--- a/core/src/main/java/org/jruby/runtime/builtin/IRubyObject.java
+++ b/core/src/main/java/org/jruby/runtime/builtin/IRubyObject.java
@@ -365,12 +365,12 @@ default IRubyObject dup(ThreadContext context) {
     void syncVariables(IRubyObject source);
     
     /**
-     * @return a list of all variables (ivar/cvar/constant/internal)
+     * @return a list of all variables (ivar/internal)
      */
     List<Variable<Object>> getVariableList();
 
     /**
-     * @return a list of all marshalable variables (ivar/cvar/constant/internal)
+     * @return a mutable list of all marshalable variables (ivar/internal)
      */
     default List<Variable<Object>> getMarshalVariableList() {
         return getVariableList();