diff --git a/Library/Homebrew/sandbox.rb b/Library/Homebrew/sandbox.rb
index e2ff84ac50..e72ecb9505 100644
--- a/Library/Homebrew/sandbox.rb
+++ b/Library/Homebrew/sandbox.rb
@@ -156,6 +156,7 @@ class Sandbox
           (literal "/dev/ptmx")
           (literal "/dev/dtracehelper")
           (literal "/dev/null")
+          (literal "/dev/random")
           (literal "/dev/zero")
           (regex #"^/dev/fd/[0-9]+$")
           (regex #"^/dev/ttys?[0-9]*$")