diff --git a/libraries/stdlib/src/JavaIterablesSpecial.kt b/libraries/stdlib/src/JavaIterablesSpecial.kt
index 266593b150c..d830fa88ebb 100644
--- a/libraries/stdlib/src/JavaIterablesSpecial.kt
+++ b/libraries/stdlib/src/JavaIterablesSpecial.kt
@@ -86,7 +86,7 @@ fun <T> java.lang.Iterable<T>.contains(item : T) : Boolean {
 }
 
 /**
- * Convert collection of arbitrary elements to collection of
+ * Convert collection of arbitrary elements to collection of tuples of the index and the element
  */
 fun <T> java.lang.Iterable<T>.withIndices() : java.lang.Iterable<#(Int, T)> {
     return object : java.lang.Iterable<#(Int, T)> {