diff --git a/public/robots.txt b/public/robots.txt
index 1f9d42f4adc..ea931e1a223 100644
--- a/public/robots.txt
+++ b/public/robots.txt
@@ -21,6 +21,8 @@ Disallow: /groups/new
 Disallow: /groups/*/edit
 Disallow: /users
 Disallow: /help
+# Only specifically allow the Sign In page to avoid very ugly search results
+Allow: /users/sign_in
 
 # Global snippets
 User-Agent: *