diff --git a/cpp/include/idevice++/idevice.hpp b/cpp/include/idevice++/idevice.hpp
index acc906c..f600d4b 100644
--- a/cpp/include/idevice++/idevice.hpp
+++ b/cpp/include/idevice++/idevice.hpp
@@ -42,7 +42,7 @@ class Idevice {
     // Methods
     Result<std::string, FfiError> get_type() const;
     Result<void, FfiError>        rsd_checkin();
-    Result<void, FfiError>        start_session(const PairingFile& pairing_file);
+    Result<void, FfiError>        start_session(const PairingFile& pairing_file, bool legacy);
 
     // Ownership/RAII
     ~Idevice() noexcept                      = default;
diff --git a/cpp/src/idevice.cpp b/cpp/src/idevice.cpp
index 88a4080..b16ab91 100644
--- a/cpp/src/idevice.cpp
+++ b/cpp/src/idevice.cpp
@@ -53,8 +53,8 @@ Result<void, FfiError> Idevice::rsd_checkin() {
     return Ok();
 }
 
-Result<void, FfiError> Idevice::start_session(const PairingFile& pairing_file) {
-    FfiError e(idevice_start_session(handle_.get(), pairing_file.raw()));
+Result<void, FfiError> Idevice::start_session(const PairingFile& pairing_file, bool legacy) {
+    FfiError e(idevice_start_session(handle_.get(), pairing_file.raw(), legacy));
     if (e) {
         return Err(e);
     }