diff --git a/python/testSrc/com/jetbrains/python/PythonAllTestsSuite.java b/python/testSrc/com/jetbrains/python/PythonAllTestsSuite.java
index d9cb855f6ac9..1cab27895f8a 100644
--- a/python/testSrc/com/jetbrains/python/PythonAllTestsSuite.java
+++ b/python/testSrc/com/jetbrains/python/PythonAllTestsSuite.java
@@ -25,6 +25,7 @@ public class PythonAllTestsSuite {
   public static final Class[] tests = {
     PythonLexerTest.class,
     PyStringLiteralLexerTest.class,
+    CythonLexerTest.class,
     PyStringFormatParserTest.class,
     PyEncodingTest.class,
     PythonParsingTest.class,