diff --git a/stdlib/ktSrc/String.kt b/stdlib/ktSrc/String.kt
index 665a13810e3..bf383cd2dd6 100644
--- a/stdlib/ktSrc/String.kt
+++ b/stdlib/ktSrc/String.kt
@@ -10,8 +10,6 @@ inline fun String.equalsIgnoreCase(anotherString: String) = (this as java.lang.S
 
 inline fun String.indexOf(str : String) = (this as java.lang.String).indexOf(str)
 
-inline fun String.matches(regex : String): Boolean = (this as java.lang.String).matches(regex)
-
 inline fun String.indexOf(str : String, fromIndex : Int) = (this as java.lang.String).indexOf(str, fromIndex)
 
 inline fun String.replace(oldChar: Char, newChar : Char) = (this as java.lang.String).replace(oldChar, newChar).sure()