diff --git a/files/auth/config.json b/files/auth/config.json
index 4fda70aa172ec74cbf0dc7551a1587d3459b3a23..9ec947ccfff50f78769a2f8f7091a6b4592dc137 100644
--- a/files/auth/config.json
+++ b/files/auth/config.json
@@ -65,7 +65,7 @@
 	// Note: The auth server needs to be able to talk to the sandbox server when authenticating (anonymous) students.
 	"SAND" : {
 	    "message_size" : 102400,
-	    "groups" : [ "AUTH", "ADMC", "DB" ]
+	    "groups" : [ "AUTH", "ADMC", "DB", "SAcl" ]
 	},
 
 	// Command-line tool for sandbox management.