diff --git a/sd-image.nix b/sd-image.nix
index eb9184b..d668c4a 100644
--- a/sd-image.nix
+++ b/sd-image.nix
@@ -14,7 +14,7 @@
   };
 
   # Increase /boot partition size
-  sdImage.firmwareSize = 256;
+  sdImage.firmwareSize = 1024;
 
   # Enable SSH
   services.sshd.enable = true;