diff --git a/example/example.yaml b/example/example.yaml
index 0234cc1..89805a7 100644
--- a/example/example.yaml
+++ b/example/example.yaml
@@ -37,7 +37,7 @@ commands:
     - ["pos1A", "pos1B"]
     - ["$files"]
     - ["$directories"]
-    - ["$(echo \"pos: $CARAPACE_ARG0 flag: $CARAPACE_FLAG_STYLED\")"]
+    - ["$(echo \"pos: $C_ARG0 flag: $C_FLAG_STYLED\")"]
     positionalany: ["posAny1", "posAny2"]
     dash:
     - ["dash1", "dash2"]
diff --git a/macro.go b/macro.go
index 8ba0199..f307c25 100644
--- a/macro.go
+++ b/macro.go
@@ -52,8 +52,12 @@ func MacroI[T any](f func(t T) carapace.Action) Macro {
 	return Macro{
 		Func: func(s string) carapace.Action {
 			var t T
-			if err := yaml.Unmarshal([]byte(s), &t); err != nil {
-				return carapace.ActionMessage(err.Error())
+			if reflect.TypeOf(t).Kind() == reflect.String {
+				reflect.ValueOf(&t).Elem().SetString(s)
+			} else {
+				if err := yaml.Unmarshal([]byte(s), &t); err != nil {
+					return carapace.ActionMessage(err.Error())
+				}
 			}
 			return f(t)
 		},
diff --git a/spec.go b/spec.go
index d557617..ab2e6c5 100644
--- a/spec.go
+++ b/spec.go
@@ -151,7 +151,7 @@ func parseAction(cmd *cobra.Command, arr []string) carapace.Action {
 		} else if nospace {
 			return batch.ToA().NoSpace()
 		}
-		return batch.ToA()
+		return batch.ToA().Invoke(c).ToA()
 	})
 }