diff --git a/libbb/Config.src b/libbb/Config.src
index 00804e31e..172fbcc0e 100644
--- a/libbb/Config.src
+++ b/libbb/Config.src
@@ -152,7 +152,7 @@ config FEATURE_TAB_COMPLETION
 
 config FEATURE_USERNAME_COMPLETION
 	bool "Username completion"
-	default n
+	default y
 	depends on FEATURE_TAB_COMPLETION
 	help
 	  Enable username completion.