diff --git a/Cargo.toml b/Cargo.toml
index 7787c0f3a2a3d7b150d7156f5e66ab11b1a4ea34..a57be74c90133a042ec03459b3942a8d23c2227c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,6 +35,7 @@ lazy_static = "1.4.0"
 crate-type = ["cdylib"]
 
 [features]
-default = ["ffi"]
+default = ["ffi", "session_optimization"]
 ffi = [] # no feature dependencies
-endpoint_logging = [] # see src/macros where a conditional check include endpoint logging
\ No newline at end of file
+endpoint_logging = [] # see src/macros.rs
+session_optimization = [] # see src/runtime/setup.rs
\ No newline at end of file