diff --git a/lib/Makefile.am b/lib/Makefile.am
index 58ef555..1045237 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -1,6 +1,5 @@
 SUBDIRS = \
-  cpp \
-  py
+  cpp
 
 if ENABLE_MONO
 SUBDIRS += csharp
@@ -10,6 +9,10 @@
 SUBDIRS += java
 endif
 
+if ENABLE_PYTHON
+SUBDIRS += py
+endif
+
 if ENABLE_ERLANG
 SUBDIRS += erl
 endif