1 files changed, 10 insertions, 3 deletions
diff --git a/src/mongo/s/client/sharding_connection_hook.cpp b/src/mongo/s/client/sharding_connection_hook.cpp
index b24bccd3381..7085a290a0c 100644
--- a/src/mongo/s/client/sharding_connection_hook.cpp
+++ b/src/mongo/s/client/sharding_connection_hook.cpp
@@ -99,10 +99,17 @@ void ShardingConnectionHook::onCreate(DBClientBase* conn) {
             return;
         }
 
+        const long long minKnownConfigServerMode = 1;
+        const long long maxKnownConfigServerMode = 2;
         uassert(28785,
-                str::stream() << "Unrecognized configsvr version number: " << configServerModeNumber
-                              << ". Expected either 0 or 1",
-                configServerModeNumber == 0 || configServerModeNumber == 1);
+                str::stream() << "Unrecognized configsvr mode number: " << configServerModeNumber
+                              << ". Range of known configsvr mode numbers is: ["
+                              << minKnownConfigServerMode
+                              << ", "
+                              << maxKnownConfigServerMode
+                              << "]",
+                configServerModeNumber >= minKnownConfigServerMode &&
+                    configServerModeNumber <= maxKnownConfigServerMode);
 
         uassertStatusOK(status);
     }