diff --git a/compiler/tests/org/jetbrains/jet/codegen/ClassGenTest.java b/compiler/tests/org/jetbrains/jet/codegen/ClassGenTest.java
index d81ffb3ae79..67ff761e219 100644
--- a/compiler/tests/org/jetbrains/jet/codegen/ClassGenTest.java
+++ b/compiler/tests/org/jetbrains/jet/codegen/ClassGenTest.java
@@ -386,7 +386,7 @@ public class ClassGenTest extends CodegenTestCase {
     public void testKt1018() throws Exception {
         createEnvironmentWithMockJdkAndIdeaAnnotations(ConfigurationKind.JDK_ONLY);
         blackBoxFile("regressions/kt1018.kt");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
     }
 
     public void testKt1120() throws Exception {
diff --git a/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java b/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
index 1392652e441..b09cbc37acc 100644
--- a/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
+++ b/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
@@ -239,7 +239,7 @@ public class ControlStructuresTest extends CodegenTestCase {
         loadText("fun foo(a: String?, b: String?): Boolean = a == null && b !== null && null == a && null !== b");
         String text = generateToText();
         assertTrue(!text.contains("java/lang/Object.equals"));
-        System.out.println(text);
+        //System.out.println(text);
         final Method main = generateFunction();
         assertEquals(true, main.invoke(null, null, "lala"));
         assertEquals(false, main.invoke(null, null, null));
@@ -442,6 +442,6 @@ public class ControlStructuresTest extends CodegenTestCase {
     public void testForInSmartCastedToArray() {
         createEnvironmentWithMockJdkAndIdeaAnnotations(ConfigurationKind.JDK_ONLY);
         blackBoxFile("controlStructures/forInSmartCastedToArray.kt");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
     }
 }
diff --git a/compiler/tests/org/jetbrains/jet/codegen/FunctionGenTest.java b/compiler/tests/org/jetbrains/jet/codegen/FunctionGenTest.java
index 3e42a77dc5f..039b0758d20 100644
--- a/compiler/tests/org/jetbrains/jet/codegen/FunctionGenTest.java
+++ b/compiler/tests/org/jetbrains/jet/codegen/FunctionGenTest.java
@@ -127,7 +127,7 @@ public class FunctionGenTest extends CodegenTestCase {
 
     public void testKt1199() {
         blackBoxFile("regressions/kt1199.kt");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
     }
 
     public void testFunction() throws InvocationTargetException, IllegalAccessException {
diff --git a/compiler/tests/org/jetbrains/jet/codegen/VarArgTest.java b/compiler/tests/org/jetbrains/jet/codegen/VarArgTest.java
index 2c2c89fcefc..9b976ef2479 100644
--- a/compiler/tests/org/jetbrains/jet/codegen/VarArgTest.java
+++ b/compiler/tests/org/jetbrains/jet/codegen/VarArgTest.java
@@ -118,7 +118,7 @@ public class VarArgTest extends CodegenTestCase {
     public void testArrayAsVararg2 () throws InvocationTargetException, IllegalAccessException {
         createEnvironmentWithMockJdkAndIdeaAnnotations(ConfigurationKind.JDK_ONLY);
         loadText("private fun asList(vararg elems: String) = elems; fun test(ts1: Array<String>, ts2: String) = asList(*ts1, ts2); ");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
         final Method main = generateFunction("test");
         Object invoke = main.invoke(null, new Object[] {new String[] {"mama"}, "papa" });
         assertInstanceOf(invoke, String[].class);