diff --git a/metacall.rb b/metacall.rb
index c46d85b..e1bfae5 100644
--- a/metacall.rb
+++ b/metacall.rb
@@ -60,6 +60,10 @@ def install
     py3include = py3prefix/"include/python#{py3ver}"
     py3rootdir = py3prefix
     py3lib = py3prefix/"lib/libpython#{py3ver}.dylib"
+    py3pip = py3prefix/"lib/python#{py3ver}/site-packages"
+
+    # Add pip site packages folder to target so the build system can find it
+    ENV.prepend_path "PIP_TARGET", py3pip
 
     # Set NodeJS
     resource("node").stage do