diff --git a/src/args.rs b/src/args.rs
index ab8a0f4..909c77c 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -52,6 +52,10 @@ pub struct CreateCommand {
     #[structopt(long = "aur-packages", value_name = "aurpackage")]
     pub aur_packages: Vec<String>,
 
+    /// Boot partition size in megabytes
+    #[structopt(long = "boot-size")]
+    pub boot_size: Option<u32>,
+
     /// Enter interactive chroot before unmounting the drive
     #[structopt(short = "i", long = "interactive")]
     pub interactive: bool,
diff --git a/src/main.rs b/src/main.rs
index e33466b..8d3298a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -162,12 +162,14 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
     info!("Partitioning the block device");
     debug!("{:?}", disk_path);
 
+    let boot_size = command.boot_size.unwrap_or(300);
+
     sgdisk
         .execute()
         .args(&[
             "-Z",
             "-o",
-            "--new=1::+250M",
+            &format!("--new=1::+{}M", boot_size),
             "--new=2::+1M",
             "--largest-new=3",
             "--typecode=1:EF00",