diff --git a/plugins/junit/src/com/intellij/execution/junit/PatternConfigurationProducer.java b/plugins/junit/src/com/intellij/execution/junit/PatternConfigurationProducer.java
index 1f0bb80fb4e3..ebffc3dd19bc 100644
--- a/plugins/junit/src/com/intellij/execution/junit/PatternConfigurationProducer.java
+++ b/plugins/junit/src/com/intellij/execution/junit/PatternConfigurationProducer.java
@@ -51,7 +51,7 @@ public class PatternConfigurationProducer extends JUnitConfigurationProducer {
     RunnerAndConfigurationSettings settings = cloneTemplateConfiguration(project, context);
     final JUnitConfiguration configuration = (JUnitConfiguration)settings.getConfiguration();
     final JUnitConfiguration.Data data = configuration.getPersistentData();
-    data.getPatterns().addAll(classes);
+    data.setPatterns(classes);
     data.TEST_OBJECT = JUnitConfiguration.TEST_PATTERN;
     data.setScope(setupPackageConfiguration(context, project, configuration, data.getScope()));
     configuration.setGeneratedName();
diff --git a/plugins/testng/src/com/theoryinpractice/testng/configuration/TestNGPatternConfigurationProducer.java b/plugins/testng/src/com/theoryinpractice/testng/configuration/TestNGPatternConfigurationProducer.java
index 02caba250ac6..4a8ebbbe8877 100644
--- a/plugins/testng/src/com/theoryinpractice/testng/configuration/TestNGPatternConfigurationProducer.java
+++ b/plugins/testng/src/com/theoryinpractice/testng/configuration/TestNGPatternConfigurationProducer.java
@@ -59,7 +59,7 @@ public class TestNGPatternConfigurationProducer extends TestNGConfigurationProdu
     RunnerAndConfigurationSettings settings = cloneTemplateConfiguration(project, context);
     final TestNGConfiguration configuration = (TestNGConfiguration)settings.getConfiguration();
     final TestData data = configuration.getPersistantData();
-    data.getPatterns().addAll(classes);
+    data.setPatterns(classes);
     data.TEST_OBJECT = TestType.PATTERN.getType();
     data.setScope(setupPackageConfiguration(context, project, configuration, data.getScope()));
     configuration.setGeneratedName();