diff --git a/PostgreSQL/Classes/PGServerController.m b/PostgreSQL/Classes/PGServerController.m
index f0f7aeb..4dba1d7 100644
--- a/PostgreSQL/Classes/PGServerController.m
+++ b/PostgreSQL/Classes/PGServerController.m
@@ -266,7 +266,7 @@ - (BOOL)validateSettingsForServer:(PGServer *)server authorization:(Authorizatio
     }
 
     // Username
-    if (NonBlank(settings.username) && ![PGProcess runShellCommand:[NSString stringWithFormat:@"id -u %@", settings.username] forRootUser:YES authorization:authorization authStatus:authStatus error:error]) {
+    if (NonBlank(settings.username) && ![PGProcess runShellCommand:[NSString stringWithFormat:@"id -u %@ >/dev/null", settings.username] forRootUser:YES authorization:authorization authStatus:authStatus error:error]) {
         settings.invalidUsername = @"No such user";
     }