diff --git a/build/Jamfile b/build/Jamfile
index 98c386c7..220a9aa4 100644
--- a/build/Jamfile
+++ b/build/Jamfile
@@ -30,6 +30,8 @@ else
         ;
 }
 
+if [ python.configured ]
+{
 project boost/python
   : source-location ../src
   ;
@@ -130,3 +132,4 @@ lib boost_numpy
         <link>static:<define>BOOST_NUMPY_STATIC_LIB
         <python-debugging>on:<define>BOOST_DEBUG_PYTHON
     ;
+}
\ No newline at end of file