diff --git a/services/horizon/internal/init.go b/services/horizon/internal/init.go
index 901ac9a185..04755a0807 100644
--- a/services/horizon/internal/init.go
+++ b/services/horizon/internal/init.go
@@ -21,7 +21,7 @@ import (
 func mustNewDBSession(subservice db.Subservice, databaseURL string, maxIdle, maxOpen int, registry *prometheus.Registry) db.SessionInterface {
 	session, err := db.Open("postgres", databaseURL)
 	if err != nil {
-		log.Fatalf("cannot open Horizon DB: %v", err)
+		log.Fatalf("cannot open %v DB: %v", subservice, err)
 	}
 
 	session.DB.SetMaxIdleConns(maxIdle)