diff --git a/pkg/service/stockholm/bridge.go b/pkg/service/stockholm/bridge.go
index b758a13..de05415 100644
--- a/pkg/service/stockholm/bridge.go
+++ b/pkg/service/stockholm/bridge.go
@@ -140,7 +140,7 @@ func (b *Bridge) dispatch(clientID string, req appSendRequest) {
 		val := b.state.Get("constant." + name)
 
 		if val == "" && name == "kilo" {
-			val = "a7928d7b43dcd49f0af31e5aeed26458"
+			val = kiloDefaultValue
 		}
 
 		b.enqueueResult(clientID, id, val, "")
diff --git a/pkg/service/stockholm/state.go b/pkg/service/stockholm/state.go
index d431a04..6c46f3d 100644
--- a/pkg/service/stockholm/state.go
+++ b/pkg/service/stockholm/state.go
@@ -65,9 +65,8 @@ func (s *NativeState) SeedFromEnv(cfg *Config) {
 		updates["margeAccountID"] = v
 	}
 
-	// Default constant
 	if s.Get("constant.kilo") == "" {
-		updates["constant.kilo"] = "a7928d7b43dcd49f0af31e5aeed26458"
+		updates["constant.kilo"] = kiloDefaultValue
 	}
 
 	// First-run defaults that require a persisted value
diff --git a/pkg/service/stockholm/util.go b/pkg/service/stockholm/util.go
index a5f550b..9a08f69 100644
--- a/pkg/service/stockholm/util.go
+++ b/pkg/service/stockholm/util.go
@@ -5,6 +5,15 @@ import (
 	"encoding/hex"
 )
 
+// kiloDefaultValue is the published default for the Stockholm "kilo"
+// constant, carried over from the upstream krahl/soundcork-stockholm-app
+// project (BackendApplication.java). Not a secret — this is the exact
+// value the Stockholm JS expects to read via getConstant("kilo") when
+// nothing else has stored a different one. Seeded into NativeState on
+// first run; also returned by the bridge as a fallback if the state
+// entry is missing.
+const kiloDefaultValue = "a7928d7b43dcd49f0af31e5aeed26458"
+
 func randomHexUUID() string {
 	b := make([]byte, 16)
 	_, _ = rand.Read(b)