diff --git a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/OSCategoryInTest.java b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/OSCategoryInTest.java
index 5a1dae378d..cc16c3afdd 100644
--- a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/OSCategoryInTest.java
+++ b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/OSCategoryInTest.java
@@ -41,7 +41,7 @@ import static org.testng.Assert.assertTrue;
 /**
  * @author Andrei Savu
  */
-@Test(groups = "unit")
+@Test(groups = "unit",  singleThreaded=true)
 public class OSCategoryInTest {
 
    private CloudStackClient client;
diff --git a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineDestroyedTest.java b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineDestroyedTest.java
index aaec87c4b5..f2c179830b 100644
--- a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineDestroyedTest.java
+++ b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineDestroyedTest.java
@@ -35,7 +35,7 @@ import static org.testng.Assert.assertTrue;
 /**
  * @author Andrei Savu
  */
-@Test(groups = "unit", testName = "VirtualMachineDestroyedTest")
+@Test(groups = "unit", singleThreaded=true, testName = "VirtualMachineDestroyedTest")
 public class VirtualMachineDestroyedTest {
 
    CloudStackClient client;
diff --git a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineExpungedTest.java b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineExpungedTest.java
index 245af44f4e..11bdbdd702 100644
--- a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineExpungedTest.java
+++ b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineExpungedTest.java
@@ -35,7 +35,7 @@ import static org.testng.Assert.assertTrue;
 /**
  * @author Andrei Savu
  */
-@Test(groups = "unit", testName = "VirtualMachineExpungedTest")
+@Test(groups = "unit", singleThreaded=true, testName = "VirtualMachineExpungedTest")
 public class VirtualMachineExpungedTest {
 
    CloudStackClient client;
diff --git a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineRunningTest.java b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineRunningTest.java
index 65eb210924..c9485916ad 100644
--- a/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineRunningTest.java
+++ b/apis/cloudstack/src/test/java/org/jclouds/cloudstack/predicates/VirtualMachineRunningTest.java
@@ -36,7 +36,7 @@ import static org.testng.Assert.assertEquals;
 /**
  * @author Andrei Savu
  */
-@Test(groups = "unit", testName = "VirtualMachineRunningTest")
+@Test(groups = "unit", singleThreaded=true, testName = "VirtualMachineRunningTest")
 public class VirtualMachineRunningTest {
 
    CloudStackClient client;