diff --git a/nixos/modules/installer/tools/nixos-generate-config.pl b/nixos/modules/installer/tools/nixos-generate-config.pl
index 0e0744a52e4..14c611e18bc 100644
--- a/nixos/modules/installer/tools/nixos-generate-config.pl
+++ b/nixos/modules/installer/tools/nixos-generate-config.pl
@@ -585,7 +585,6 @@ $bootLoaderConfig
 
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
-  # programs.bash.enableCompletion = true;
   # programs.mtr.enable = true;
   # programs.gnupg.agent = { enable = true; enableSSHSupport = true; };
 
diff --git a/nixos/modules/programs/bash/bash.nix b/nixos/modules/programs/bash/bash.nix
index c0967316c0c..69a1a482d07 100644
--- a/nixos/modules/programs/bash/bash.nix
+++ b/nixos/modules/programs/bash/bash.nix
@@ -110,7 +110,7 @@ in
       };
 
       enableCompletion = mkOption {
-        default = false;
+        default = true;
         description = ''
           Enable Bash completion for all interactive bash shells.
         '';