diff --git a/shell.nix b/shell.nix
index 3b0cf5c..f9cb82f 100644
--- a/shell.nix
+++ b/shell.nix
@@ -15,6 +15,7 @@ mkShell {
     gcc-arm-embedded
     dfu-util
 
+    blackmagic
     pkg-config
     libftdi1
     libusb-compat-0_1