diff --git a/build/prebuild.sh b/build/prebuild.sh
index 376e10752..17bc41374 100755
--- a/build/prebuild.sh
+++ b/build/prebuild.sh
@@ -52,6 +52,7 @@ if ! cmd_exists python; then
     $INSTALL python2.7
   elif $OSX; then
     brew install python
+    curl https://bootstrap.pypa.io/get-pip.py | python
   fi
 fi