diff --git a/modules/programs/foot.nix b/modules/programs/foot.nix
index eed0042d..2d434192 100644
--- a/modules/programs/foot.nix
+++ b/modules/programs/foot.nix
@@ -6,7 +6,7 @@
 }:
 let
   cfg = config.programs.foot;
-  iniFormat = pkgs.formats.ini { };
+  iniFormat = pkgs.formats.ini { listsAsDuplicateKeys = true; };
 in
 {
   meta.maintainers = with lib.maintainers; [ plabadens ];
diff --git a/tests/modules/programs/foot/default.nix b/tests/modules/programs/foot/default.nix
index 329e0f1f..cb813ffa 100644
--- a/tests/modules/programs/foot/default.nix
+++ b/tests/modules/programs/foot/default.nix
@@ -2,4 +2,5 @@
   foot-example-settings = ./example-settings.nix;
   foot-empty-settings = ./empty-settings.nix;
   foot-systemd-user-service = ./systemd-user-service.nix;
+  foot-regex-modes = ./regex-modes.nix;
 }
diff --git a/tests/modules/programs/foot/regex-modes-expected.ini b/tests/modules/programs/foot/regex-modes-expected.ini
new file mode 100644
index 00000000..505b2341
--- /dev/null
+++ b/tests/modules/programs/foot/regex-modes-expected.ini
@@ -0,0 +1,11 @@
+[key-bindings]
+regex-launch=[one] Shift+Control+1
+regex-launch=[two] Shift+Control+2
+
+[regex:one]
+launch=echo Regex one works
+regex=(some regex)
+
+[regex:two]
+launch=echo Second also works!
+regex=(some other regex)
diff --git a/tests/modules/programs/foot/regex-modes.nix b/tests/modules/programs/foot/regex-modes.nix
new file mode 100644
index 00000000..e3710ed2
--- /dev/null
+++ b/tests/modules/programs/foot/regex-modes.nix
@@ -0,0 +1,29 @@
+{ config, ... }:
+{
+  programs.foot = {
+    enable = true;
+    package = config.lib.test.mkStubPackage { };
+
+    settings = {
+      "regex:one" = {
+        regex = "(some regex)";
+        launch = "echo Regex one works";
+      };
+      "regex:two" = {
+        regex = "(some other regex)";
+        launch = "echo Second also works!";
+      };
+
+      key-bindings.regex-launch = [
+        "[one] Shift+Control+1"
+        "[two] Shift+Control+2"
+      ];
+    };
+  };
+
+  nmt.script = ''
+    assertFileContent \
+      home-files/.config/foot/foot.ini \
+      ${./regex-modes-expected.ini}
+  '';
+}