diff --git a/plugins/org.python.pydev.debug/plugin.xml b/plugins/org.python.pydev.debug/plugin.xml
index 505a1d99a..4f903b492 100644
--- a/plugins/org.python.pydev.debug/plugin.xml
+++ b/plugins/org.python.pydev.debug/plugin.xml
@@ -246,7 +246,6 @@
 	
 </extension>
 
-<!--- launcher pop up over a python file -->
 <!--- launcher pop up over a python file -->
 <extension point="org.eclipse.core.expressions.propertyTesters">
 	<propertyTester
diff --git a/plugins/org.python.pydev/src/org/python/pydev/ui/wizards/files/PythonSourceFolderWizard.java b/plugins/org.python.pydev/src/org/python/pydev/ui/wizards/files/PythonSourceFolderWizard.java
index c7b821341..429dd57a4 100644
--- a/plugins/org.python.pydev/src/org/python/pydev/ui/wizards/files/PythonSourceFolderWizard.java
+++ b/plugins/org.python.pydev/src/org/python/pydev/ui/wizards/files/PythonSourceFolderWizard.java
@@ -9,6 +9,9 @@
  */
 package org.python.pydev.ui.wizards.files;
 
+import java.util.SortedSet;
+import java.util.TreeSet;
+
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IFolder;
 import org.eclipse.core.resources.IProject;
@@ -89,7 +92,11 @@ protected IFile doCreateNew(IProgressMonitor monitor) throws CoreException {
         }
         if (curr.length() > 0) {
             //there is already some path
-            curr += "|" + newPath;
+            SortedSet<String> projectSourcePathSet = new TreeSet<String>(pathNature.getProjectSourcePathSet(true));
+            if (!projectSourcePathSet.contains(newPath)) {
+                //only add to the path if it doesn't already contain the new path
+                curr += "|" + newPath;
+            }
         } else {
             //there is still no other path
             curr = newPath;