diff --git a/common/sourceTest/java/ch/systemsx/cisd/common/os/UnixTests.java b/common/sourceTest/java/ch/systemsx/cisd/common/os/UnixTests.java
index 154b2287ad92b2aebfb0c5659cb8f39241aed905..b682d6aa0d78e6b15692acd1d65efc52919ee3dc 100644
--- a/common/sourceTest/java/ch/systemsx/cisd/common/os/UnixTests.java
+++ b/common/sourceTest/java/ch/systemsx/cisd/common/os/UnixTests.java
@@ -269,8 +269,8 @@ public class UnixTests extends AbstractFileSystemTestCase
     public void testDetectProcess()
     {
         assertTrue(Unix.canDetectProcesses());
-        assertTrue(Unix.isProcessRunningProcFS(1));
         assertTrue(Unix.isProcessRunningPS(1));
+        assertTrue(Unix.isProcessRunning(1));
     }
     
     public static void main(String[] args) throws Throwable