diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/DescriptorResolver.java b/compiler/frontend/src/org/jetbrains/kotlin/resolve/DescriptorResolver.java
index 072ed89c2ee..dd00004dd63 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/DescriptorResolver.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/DescriptorResolver.java
@@ -268,7 +268,7 @@ public class DescriptorResolver {
                     new ValueParameterDescriptorImpl(functionDescriptor, null, parameter.getIndex(), parameter.getAnnotations(),
                                                      parameter.getName(), parameter.getType(),
                                                      declaresDefaultValue,
-                                                     parameter.getVarargElementType(), SourceElement.NO_SOURCE);
+                                                     parameter.getVarargElementType(), parameter.getSource());
             parameterDescriptors.add(parameterDescriptor);
             if (declaresDefaultValue) {
                 trace.record(BindingContext.VALUE_PARAMETER_AS_PROPERTY, parameterDescriptor, propertyDescriptor);
diff --git a/idea/testData/refactoring/rename/simpleNameReference/parameterOfCopyMethod.kt b/idea/testData/refactoring/rename/simpleNameReference/parameterOfCopyMethod.kt
new file mode 100644
index 00000000000..dcf9a46c71b
--- /dev/null
+++ b/idea/testData/refactoring/rename/simpleNameReference/parameterOfCopyMethod.kt
@@ -0,0 +1,6 @@
+data class A(val <caret>x: Int)
+
+fun main(args: Array<String>) {
+    val a = A(x = 1)
+    val b = a.copy(x = 2)
+}
diff --git a/idea/testData/refactoring/rename/simpleNameReference/parameterOfCopyMethod.kt.after b/idea/testData/refactoring/rename/simpleNameReference/parameterOfCopyMethod.kt.after
new file mode 100644
index 00000000000..64b00921c70
--- /dev/null
+++ b/idea/testData/refactoring/rename/simpleNameReference/parameterOfCopyMethod.kt.after
@@ -0,0 +1,6 @@
+data class A(val y: Int)
+
+fun main(args: Array<String>) {
+    val a = A(y = 1)
+    val b = a.copy(y = 2)
+}
diff --git a/idea/tests/org/jetbrains/kotlin/idea/refactoring/rename/SimpleNameReferenceRenameTest.java b/idea/tests/org/jetbrains/kotlin/idea/refactoring/rename/SimpleNameReferenceRenameTest.java
index 9c9374f1570..986b5387d6f 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/refactoring/rename/SimpleNameReferenceRenameTest.java
+++ b/idea/tests/org/jetbrains/kotlin/idea/refactoring/rename/SimpleNameReferenceRenameTest.java
@@ -51,6 +51,10 @@ public class SimpleNameReferenceRenameTest extends LightCodeInsightTestCase {
         doTest("xyzzy");
     }
 
+    public void testParameterOfCopyMethod() throws Exception {
+        doTest("y");
+    }
+
     private void doTest(String newName) throws Exception {
         configureByFile(getTestName(true) + ".kt");
         PsiElement element = TargetElementUtilBase