diff --git a/packages/pynn-brainscales/package.py b/packages/pynn-brainscales/package.py
index 4f9c40a283ad05c39ad616933dad77c9e3e360d1..e739fd808cd71861a3683d7f4001f03aec371c60 100644
--- a/packages/pynn-brainscales/package.py
+++ b/packages/pynn-brainscales/package.py
@@ -57,6 +57,9 @@ class PynnBrainscales(WafPackage):
         env.set('LD_LIBRARY_PATH', ':'.join(library))
         env.prepend_path('PATH', ':'.join(path))
 
+    def setup_run_environment(self, env):
+        env.prepend_path('PYTHONPATH', self.prefix.lib)
+
     # override configure step as we perform a project setup first
     def configure(self, spec, prefix):
         """Setup and configure the project."""