Index: kernel/pyext/SConscript
===================================================================
--- kernel/pyext/SConscript	(revision 520)
+++ kernel/pyext/SConscript	(working copy)
@@ -5,7 +5,7 @@
 # Get a modified build environment suitable for building Python extensions:
 e = get_pyext_environment(env, 'IMP', cplusplus=True)
 e.Append(CPPPATH=['#/kernel/include', e['BOOST_CPPPATH']])
-e.Append(LIBPATH='../src', LIBS='imp')
+e.Append(LIBPATH=['../src'], LIBS='imp')
 
 # Build the Python extension from SWIG interface file:
 pyext = e.LoadableModule('_IMP', 'IMP.i',