diff --git a/ledger_app.toml b/ledger_app.toml
index 5c2fe3020..1636e4d01 100644
--- a/ledger_app.toml
+++ b/ledger_app.toml
@@ -1,7 +1,7 @@
 [app]
 build_directory = "./"
 sdk = "C"
-devices = ["nanos", "nanox", "nanos+", "stax"]
+devices = ["nanos", "nanox", "nanos+", "stax", "flex"]
 
 [use_cases] # Coherent build options that make sense for your application
 debug = "DEBUG=1"