diff --git a/ledger_device_sdk/.cargo/config.toml b/ledger_device_sdk/.cargo/config.toml
index b8e952f9..788d7fc7 100644
--- a/ledger_device_sdk/.cargo/config.toml
+++ b/ledger_device_sdk/.cargo/config.toml
@@ -7,6 +7,12 @@ runner = "speculos -m nanox --display=headless"
 [target.nanosplus]
 runner = "speculos -m nanosp --display=headless"
 
+[target.stax]
+runner = "speculos --model stax --display=headless"
+
+[target.flex]
+runner = "speculos --model flex --display=headless"
+
 [unstable]
 build-std = ["core"]
 build-std-features = ["compiler-builtins-mem"]