diff --git a/sp-sim/src/lib.rs b/sp-sim/src/lib.rs
index cf6c7b1997e..9546ffb0473 100644
--- a/sp-sim/src/lib.rs
+++ b/sp-sim/src/lib.rs
@@ -33,6 +33,10 @@ pub use update::HostFlashHashPolicy;
 
 pub const SIM_ROT_BOARD: &str = "SimRot";
 
+/// The staging/devel key signature reported in simulated RoT/stage0 cabooses.
+pub const ROT_STAGING_DEVEL_SIGN: &str =
+    "11594bb5548a757e918e6fe056e2ad9e084297c9555417a025d8788eacf55daf";
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Responsiveness {
     Responsive,
diff --git a/sp-sim/src/update.rs b/sp-sim/src/update.rs
index e6138eef016..acea690ca1a 100644
--- a/sp-sim/src/update.rs
+++ b/sp-sim/src/update.rs
@@ -8,6 +8,7 @@ use std::mem;
 use std::time::Duration;
 use std::time::Instant;
 
+use crate::ROT_STAGING_DEVEL_SIGN;
 use crate::SIM_GIMLET_BOARD;
 use crate::SIM_ROT_BOARD;
 use crate::SIM_SIDECAR_BOARD;
@@ -90,9 +91,6 @@ impl SimSpUpdate {
         const ROT_GITC1: &str = "edededed";
         const ROT_VERS0: &str = "0.0.4";
         const ROT_VERS1: &str = "0.0.3";
-        // staging/devel key signature
-        const ROT_STAGING_DEVEL_SIGN: &str =
-            "11594bb5548a757e918e6fe056e2ad9e084297c9555417a025d8788eacf55daf";
 
         const STAGE0_GITC0: &str = "ddddddddd";
         const STAGE0_GITC1: &str = "dadadadad";