diff --git a/src/xbob.io b/src/xbob.io
index 7892708682bea5855818809ea6340d26c7c7f389..b919404de7021dd8b401a0f384e68756eda8f6da 160000
--- a/src/xbob.io
+++ b/src/xbob.io
@@ -1 +1 @@
-Subproject commit 7892708682bea5855818809ea6340d26c7c7f389
+Subproject commit b919404de7021dd8b401a0f384e68756eda8f6da
diff --git a/xbob/learn/activation/__init__.py b/xbob/learn/activation/__init__.py
index 907b5a4cc6914a0772c0e1d8211f22a21339f418..2bf07dc76f0be5a1709cf8f0264bff869b4cea2d 100644
--- a/xbob/learn/activation/__init__.py
+++ b/xbob/learn/activation/__init__.py
@@ -1,2 +1,7 @@
 from ._library import *
 from ._library import __version__, __api_version__
+
+def get_include():
+  """Returns the directory containing the C/C++ API include directives"""
+
+  return __import__('pkg_resources').resource_filename(__name__, 'include')