diff --git a/modules/programs/fish.nix b/modules/programs/fish.nix
index e9613539..689fc41c 100644
--- a/modules/programs/fish.nix
+++ b/modules/programs/fish.nix
@@ -185,7 +185,7 @@ let
       };
 
       command = mkOption {
-        type = with types; nullOr str;
+        type = with types; nullOr (either str (listOf str));
         default = null;
         description = ''
           Specifies the command(s) for which the abbreviation should expand. If
diff --git a/tests/modules/programs/fish/abbrs.nix b/tests/modules/programs/fish/abbrs.nix
index c026c3c2..030d65c3 100644
--- a/tests/modules/programs/fish/abbrs.nix
+++ b/tests/modules/programs/fish/abbrs.nix
@@ -39,6 +39,13 @@
           command = "git";
           expansion = "checkout";
         };
+        s = {
+          command = [
+            "git"
+            "hg"
+          ];
+          expansion = "status";
+        };
         dotdot = {
           regex = "^\\.\\.+$";
           function = "multicd";
@@ -70,6 +77,8 @@
         '"
         assertFileContains home-files/.config/fish/config.fish \
           "abbr --add --command git -- co checkout"
+        assertFileContains home-files/.config/fish/config.fish \
+          "abbr --add --command git --command hg -- s status"
         assertFileContains home-files/.config/fish/config.fish \
           "abbr --add --function multicd --regex '^\.\.+$' -- dotdot"
       '';