diff --git a/js/js.inliner/src/org/jetbrains/k2js/inline/context/NamingContext.kt b/js/js.inliner/src/org/jetbrains/k2js/inline/context/NamingContext.kt
index e8be1961929..6d52a79b4d0 100644
--- a/js/js.inliner/src/org/jetbrains/k2js/inline/context/NamingContext.kt
+++ b/js/js.inliner/src/org/jetbrains/k2js/inline/context/NamingContext.kt
@@ -49,9 +49,9 @@ class NamingContext(
         renamings.put(name, replacement)
     }
 
-    public fun getFreshName(candidate: String?): JsName = scope.declareFreshName(candidate)
+    public fun getFreshName(candidate: String): JsName = scope.declareFreshName(candidate)
 
-    public fun getFreshName(candidate: JsName?): JsName = getFreshName(candidate?.getIdent())
+    public fun getFreshName(candidate: JsName): JsName = getFreshName(candidate.getIdent())
 
     public fun newVar(name: JsName, value: JsExpression? = null) {
         val vars = JsAstUtils.newVar(name, value)