diff --git a/core/src/session.rs b/core/src/session.rs
index e3b474bf..37a4aba0 100644
--- a/core/src/session.rs
+++ b/core/src/session.rs
@@ -184,7 +184,7 @@ impl Session {
         self.0.cache.as_ref()
     }
 
-    pub fn config(&self) -> &SessionConfig {
+    fn config(&self) -> &SessionConfig {
         &self.0.config
     }