diff --git a/README.md b/README.md
index eb88103..78ef714 100644
--- a/README.md
+++ b/README.md
@@ -231,6 +231,11 @@ display_property = "instance"
 Possible options are `class`, `instance`, and `name`, and will default to `class`
 if not present.
 
+You can alternatively supply cmd argument:
+
+```sh
+i3wsr --display-property instance
+```
 ### Icons
 
 You can configure icons for your WM property, a very basic preset for
diff --git a/src/lib.rs b/src/lib.rs
index b5f5533..d836967 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -32,15 +32,8 @@ fn get_title(
     let wm_instance = props.get(&WindowProperty::Instance);
     let wm_name = props.get(&WindowProperty::Title);
     let display_prop = match config.general.get("display_property") {
-        Some(prop) => {
-            match prop.as_ref() {
-                "class" | "instance" | "name" => prop,
-                _ => "class"
-            }
-        },
-        None => {
-            "class"
-        }
+        Some(prop) => prop,
+        None => "class",
     };
 
     // Check for aliases using pre-compiled regex
diff --git a/src/main.rs b/src/main.rs
index 9db27ca..332c138 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,6 +10,13 @@ enum Icons {
     Awesome,
 }
 
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, ValueEnum, Debug)]
+enum Properties {
+    Class,
+    Instance,
+    Name,
+}
+
 /// i3wsr config
 #[derive(Parser, Debug)]
 #[command(author, version, about, long_about = None)]
@@ -34,6 +41,10 @@ struct Args {
     #[arg(short, long)]
     remove_duplicates: bool,
 
+    /// Which window property to use when no alias is found
+    #[arg(short = 'p', long)]
+    display_property: Option<Properties>,
+
     /// What character used to split the workspace title string
     #[arg(short = 'a', long)]
     split_at: Option<String>,
@@ -95,6 +106,18 @@ fn setup() -> Result<Config, Box<dyn Error>> {
         config.general.insert("split_at".to_string(), split_char);
     }
 
+    // wm property
+    let display_property = match args.display_property {
+        Some(prop) => match prop {
+            Properties::Class => String::from("class"),
+            Properties::Instance => String::from("instance"),
+            Properties::Name => String::from("name"),
+        },
+        None => String::from("class"),
+    };
+    config
+        .general
+        .insert("display_property".to_string(), display_property);
     Ok(config)
 }