diff --git a/docs/modules/Custom.md b/docs/modules/Custom.md
index 05dc5d3..6d33749 100644
--- a/docs/modules/Custom.md
+++ b/docs/modules/Custom.md
@@ -76,16 +76,17 @@ A draggable slider.
 Note that `on_change` will provide the **floating point** value as an argument. 
 If your input program requires an integer, you will need to round it.
 
-| Name          | Type                                               | Default      | Description                                                                  |
-|---------------|----------------------------------------------------|--------------|------------------------------------------------------------------------------|
-| `src`         | `image`                                            | `null`       | Image source. See [here](images) for information on images.                  |
-| `size`        | `integer`                                          | `null`       | Width/height of the image. Aspect ratio is preserved.                        |
-| `orientation` | `horizontal` or `vertical` (shorthand: `h` or `v`) | `horizontal` | Orientation of the slider.                                                   |
-| `value`       | `Script`                                           | `null`       | Script to run to get the slider value. Output must be a valid number.        | 
-| `on_change`   | `string [command]`                                 | `null`       | Command to execute when the slider changes. More on this [below](#commands). | 
-| `min`         | `float`                                            | `0`          | Minimum slider value.                                                        | 
-| `max`         | `float`                                            | `100`        | Maximum slider value.                                                        | 
-| `length`      | `integer`                                          | `null`       | Slider length. GTK will automatically size if left unset.                    |
+| Name          | Type                                               | Default      | Description                                                                                                                     |
+|---------------|----------------------------------------------------|--------------|---------------------------------------------------------------------------------------------------------------------------------|
+| `src`         | `image`                                            | `null`       | Image source. See [here](images) for information on images.                                                                     |
+| `size`        | `integer`                                          | `null`       | Width/height of the image. Aspect ratio is preserved.                                                                           |
+| `orientation` | `horizontal` or `vertical` (shorthand: `h` or `v`) | `horizontal` | Orientation of the slider.                                                                                                      |
+| `value`       | `Script`                                           | `null`       | Script to run to get the slider value. Output must be a valid number.                                                           | 
+| `on_change`   | `string [command]`                                 | `null`       | Command to execute when the slider changes. More on this [below](#commands).                                                    | 
+| `min`         | `float`                                            | `0`          | Minimum slider value.                                                                                                           | 
+| `max`         | `float`                                            | `100`        | Maximum slider value.                                                                                                           | 
+| `step`        | `float`                                            | -            | The increment to change when scrolling with the mouse wheel. If left blank, will use the default determined by the environment. | 
+| `length`      | `integer`                                          | `null`       | Slider length. GTK will automatically size if left unset.                                                                       |
 
 The example slider widget below shows a volume control for MPC, 
 which updates the server when changed, and polls the server for volume changes to keep the slider in sync.
diff --git a/src/modules/custom/slider.rs b/src/modules/custom/slider.rs
index 0b2f946..f777b1c 100644
--- a/src/modules/custom/slider.rs
+++ b/src/modules/custom/slider.rs
@@ -7,6 +7,7 @@ use gtk::prelude::*;
 use gtk::Scale;
 use serde::Deserialize;
 use std::cell::Cell;
+use std::ops::Neg;
 use tokio::spawn;
 use tracing::error;
 
@@ -21,6 +22,7 @@ pub struct SliderWidget {
     min: f64,
     #[serde(default = "default_max")]
     max: f64,
+    step: Option<f64>,
     length: Option<i32>,
 }
 
@@ -53,11 +55,26 @@ impl CustomWidget for SliderWidget {
         if let Some(on_change) = self.on_change {
             let min = self.min;
             let max = self.max;
+            let step = self.step;
             let tx = context.tx.clone();
 
             // GTK will spam the same value over and over
             let prev_value = Cell::new(scale.value());
 
+            scale.connect_scroll_event(move |scale, event| {
+                let value = scale.value();
+                let delta = event.delta().1.neg();
+
+                let delta = match (step, delta.is_sign_positive()) {
+                    (Some(step), true) => step,
+                    (Some(step), false) => -step,
+                    (None, _) => delta,
+                };
+
+                scale.set_value(value + delta);
+                Inhibit(false)
+            });
+
             scale.connect_change_value(move |scale, _, val| {
                 // GTK will send values outside min/max range
                 let val = val.clamp(min, max);