diff --git a/modules/programs/borgmatic.nix b/modules/programs/borgmatic.nix
index 054ee232..d6980388 100644
--- a/modules/programs/borgmatic.nix
+++ b/modules/programs/borgmatic.nix
@@ -20,7 +20,7 @@ let
     };
 
   extraConfigOption = mkOption {
-    type = with types; attrsOf (oneOf [ str bool path int ]);
+    type = with types; attrsOf (oneOf [ str bool path int (listOf str) ]);
     default = { };
     description = "Extra settings.";
   };
diff --git a/tests/modules/programs/borgmatic/basic-configuration.nix b/tests/modules/programs/borgmatic/basic-configuration.nix
index 7a7b63d2..b9988d47 100644
--- a/tests/modules/programs/borgmatic/basic-configuration.nix
+++ b/tests/modules/programs/borgmatic/basic-configuration.nix
@@ -12,7 +12,10 @@ in {
           location = {
             sourceDirectories = [ "/my-stuff-to-backup" ];
             repositories = [ "/mnt/disk1" "/mnt/disk2" ];
-            extraConfig = { one_file_system = true; };
+            extraConfig = {
+              one_file_system = true;
+              exclude_patterns = [ "*.swp" ];
+            };
           };
 
           storage = {
@@ -64,6 +67,9 @@ in {
       expectations[location.one_file_system]="${
         boolToString backups.main.location.extraConfig.one_file_system
       }"
+      expectations[location.exclude_patterns[0]]="${
+        builtins.elemAt backups.main.location.extraConfig.exclude_patterns 0
+      }"
 
       expectations[storage.encryption_passcommand]="${backups.main.storage.encryptionPasscommand}"
       expectations[storage.checkpoint_interval]="${