diff --git a/shell.nix b/shell.nix
index cfc734e..5bd4555 100644
--- a/shell.nix
+++ b/shell.nix
@@ -7,7 +7,9 @@ mkShell {
   STM32STDLIB = "${libstm32stdperiph}";
 
   nativeBuildInputs = [
+    gnumake
     stlink
+    screen
     gcc-arm-embedded-10
     libstm32cube
     libstm32stdperiph