diff --git a/idea/src/org/jetbrains/kotlin/idea/quickfix/AddArrayOfTypeFix.kt b/idea/src/org/jetbrains/kotlin/idea/quickfix/AddArrayOfTypeFix.kt
index 5ba7ab0659b..e1badc0866b 100644
--- a/idea/src/org/jetbrains/kotlin/idea/quickfix/AddArrayOfTypeFix.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/quickfix/AddArrayOfTypeFix.kt
@@ -25,9 +25,9 @@ import org.jetbrains.kotlin.psi.KtPsiFactory
 import org.jetbrains.kotlin.psi.createExpressionByPattern
 import org.jetbrains.kotlin.types.KotlinType
 
-class AddArrayOfTypeFix(expression: KtExpression, val expectedType: KotlinType) : KotlinQuickFixAction<KtExpression>(expression) {
+class AddArrayOfTypeFix(expression: KtExpression, expectedType: KotlinType) : KotlinQuickFixAction<KtExpression>(expression) {
 
-    val prefix = if (KotlinBuiltIns.isArray(expectedType)) {
+    private val prefix = if (KotlinBuiltIns.isArray(expectedType)) {
         "arrayOf"
     }
     else {
@@ -37,7 +37,6 @@ class AddArrayOfTypeFix(expression: KtExpression, val expectedType: KotlinType)
     }
 
     override fun getText() = "Add $prefix wrapper"
-
     override fun getFamilyName() = "Add arrayOf wrapper"
 
     override fun invoke(project: Project, editor: Editor?, file: KtFile) {