diff --git a/compiler/tests/org/jetbrains/jet/JUnit3RunnerWithInners.java b/compiler/tests/org/jetbrains/jet/JUnit3RunnerWithInners.java
index 8464f207c4a..1c44df7d4f2 100644
--- a/compiler/tests/org/jetbrains/jet/JUnit3RunnerWithInners.java
+++ b/compiler/tests/org/jetbrains/jet/JUnit3RunnerWithInners.java
@@ -117,13 +117,12 @@ public class JUnit3RunnerWithInners extends Runner implements Filterable, Sortab
                 return new TestSuite(klass.asSubclass(TestCase.class));
             }
         }
-        else {
-            assert unprocessedInnerClasses.size() == innerClasses.size() :
-                    String.format("Some inner classes left unprocessed during creating runner for %s: %s",
-                                  klass.getCanonicalName(), unprocessedInnerClasses);
-
+        else if (unprocessedInnerClasses.size() == innerClasses.size()) {
             return createTreeTestSuite(klass);
         }
+        else {
+            return new TestSuite(klass.asSubclass(TestCase.class));
+        }
     }
 
     private static Test createTreeTestSuite(Class root) {