diff --git a/pkgs/development/interpreters/python/python-linkme-wrapper.sh b/pkgs/development/interpreters/python/python-linkme-wrapper.sh
index 606bb76d401a..42674aa83b08 100644
--- a/pkgs/development/interpreters/python/python-linkme-wrapper.sh
+++ b/pkgs/development/interpreters/python/python-linkme-wrapper.sh
@@ -14,7 +14,7 @@ PROG=$(basename "$0")
 SITES=
 
 pypath() {
-  BIN=$(realpath -s "$(dirname "$BIN")")
+  BIN=$(realpath -s "$(dirname "$1")")
   ENV=$(dirname "$BIN")
   SITE="$ENV/lib/python2.7/site-packages"
   SITES="$SITES${SITES:+:}$SITE"