diff --git a/Formula/scons.rb b/Formula/scons.rb
index 3d95abd9f0c..a2f66dca7a4 100644
--- a/Formula/scons.rb
+++ b/Formula/scons.rb
@@ -7,9 +7,9 @@ class Scons < Formula
 
   def install
     man1.install gzip('scons-time.1', 'scons.1', 'sconsign.1')
-    system "python", "setup.py", "install",
-                     "--prefix=#{prefix}",
-                     "--standalone-lib",
-                     "--no-version-script", "--no-install-man"
+    system "/usr/bin/python", "setup.py", "install",
+             "--prefix=#{prefix}",
+             "--standalone-lib",
+             "--no-version-script", "--no-install-man"
   end
 end