diff --git a/lib/systems/inspect.nix b/lib/systems/inspect.nix
index e35e7b4a1ec..932f8fd1e53 100644
--- a/lib/systems/inspect.nix
+++ b/lib/systems/inspect.nix
@@ -21,6 +21,7 @@ rec {
     isSparc        = { cpu = { family = "sparc"; }; };
     isWasm         = { cpu = { family = "wasm"; }; };
     isAvr          = { cpu = { family = "avr"; }; };
+    isAlpha        = { cpu = { family = "alpha"; }; };
 
     is32bit        = { cpu = { bits = 32; }; };
     is64bit        = { cpu = { bits = 64; }; };