diff --git a/HACKING b/HACKING
index 5ea8fc2889..b6182c0a36 100644
--- a/HACKING
+++ b/HACKING
@@ -42,7 +42,7 @@ developer's checkout, you have two main options:
    source tree -- one where the .svn subdirectory is not present.  For
    example:
 
-     shell$ svn co https://svn.open-mpi.org/svn/ompi/trunk ompi
+     shell$ svn co http://svn.open-mpi.org/svn/ompi/trunk ompi
      shell$ cd ompi
      shell$ ./autogen.sh
      shell$ mkdir build