diff --git a/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationStatementProcessor.java b/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationStatementProcessor.java
index 84c7fe5be7d3..cad0dbfdb02a 100644
--- a/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationStatementProcessor.java
+++ b/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationStatementProcessor.java
@@ -388,7 +388,7 @@ class TypeMigrationStatementProcessor extends JavaRecursiveElementVisitor {
       for (int i = 0; i < psiExpressions.length; i++) {
         PsiParameter originalParameter;
         if (originalParams.length <= i) {
-          if (originalParams[originalParams.length - 1].isVarArgs()) {
+          if (originalParams.length > 0 && originalParams[originalParams.length - 1].isVarArgs()) {
             originalParameter = originalParams[originalParams.length - 1];
           } else {
             continue;