diff --git a/builds/runtimes/python-3.1.3 b/builds/runtimes/python-3.1.3
index 7af8e66..29e3b56 100755
--- a/builds/runtimes/python-3.1.3
+++ b/builds/runtimes/python-3.1.3
@@ -4,12 +4,10 @@
 
 OUT_PREFIX=$1
 
-echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1.3/Python-3.1.3.tgz'
-curl -L $SOURCE_TARBALL | tar xz
-mv Python-3.1.3 src
-cd src
+source ./download_python
+download_python "3.1.3"
 
+cd src
 ./configure --prefix=$OUT_PREFIX --enable-shared
 make
 make install