diff --git a/compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObjectCopiedField.kt b/compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObjectCopiedField.kt
new file mode 100644
index 00000000000..f8208c91661
--- /dev/null
+++ b/compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObjectCopiedField.kt
@@ -0,0 +1,8 @@
+class C {
+    class object {
+        val X = 1
+        <!CONFLICTING_JVM_DECLARATIONS!>val `X$1`<!> = 1
+    }
+
+    <!CONFLICTING_JVM_DECLARATIONS!>val X<!> = 1
+}
\ No newline at end of file
diff --git a/compiler/tests/org/jetbrains/jet/checkers/JetDiagnosticsTestGenerated.java b/compiler/tests/org/jetbrains/jet/checkers/JetDiagnosticsTestGenerated.java
index eafe1726bd4..3cc7ef1093e 100644
--- a/compiler/tests/org/jetbrains/jet/checkers/JetDiagnosticsTestGenerated.java
+++ b/compiler/tests/org/jetbrains/jet/checkers/JetDiagnosticsTestGenerated.java
@@ -2850,6 +2850,11 @@ public class JetDiagnosticsTestGenerated extends AbstractJetDiagnosticsTest {
                     doTest("compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObject.kt");
                 }
                 
+                @TestMetadata("classObjectCopiedField.kt")
+                public void testClassObjectCopiedField() throws Exception {
+                    doTest("compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/classObjectCopiedField.kt");
+                }
+                
                 @TestMetadata("dataClassCopy.kt")
                 public void testDataClassCopy() throws Exception {
                     doTest("compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/dataClassCopy.kt");