diff --git a/pyNN/nest/extensions/CMakeLists.txt b/pyNN/nest/extensions/CMakeLists.txt
index a24cadeb..4463c6d7 100644
--- a/pyNN/nest/extensions/CMakeLists.txt
+++ b/pyNN/nest/extensions/CMakeLists.txt
@@ -168,7 +168,7 @@ execute_process(
 set( CMAKE_MACOSX_RPATH ON )
 
 # Install all stuff to NEST's install directories.
-set( CMAKE_INSTALL_LIBDIR ${NEST_LIBDIR}/nest CACHE STRING "object code libraries (lib/nest or lib64/nest or lib/<multiarch-tuple>/nest on Debian)" FORCE )
+set( CMAKE_INSTALL_LIBDIR ${NEST_LIBDIR} CACHE STRING "object code libraries (lib/nest or lib64/nest or lib/<multiarch-tuple>/nest on Debian)" FORCE )
 set( CMAKE_INSTALL_DOCDIR ${NEST_DOCDIR} CACHE STRING "documentation root (DATAROOTDIR/doc/nest)" FORCE )
 set( CMAKE_INSTALL_DATADIR ${NEST_DATADIR} CACHE STRING "read-only architecture-independent data (DATAROOTDIR/nest)" FORCE )