diff --git a/modules/programs/bash.nix b/modules/programs/bash.nix
index d8359c12f..14a158a24 100644
--- a/modules/programs/bash.nix
+++ b/modules/programs/bash.nix
@@ -155,7 +155,7 @@ in
     in mkIf cfg.enable {
       programs.bash.bashrcExtra = ''
         # Commands that should be applied only for interactive shells.
-        if [[ -n $PS1 ]]; then
+        if [[ $- == *i* ]]; then
           ${historyControlStr}
 
           ${shoptsStr}