diff --git a/src/transport/fusedev/linux_session.rs b/src/transport/fusedev/linux_session.rs
index e9d34fcc8..c2233fd71 100644
--- a/src/transport/fusedev/linux_session.rs
+++ b/src/transport/fusedev/linux_session.rs
@@ -89,7 +89,7 @@ impl FuseSession {
     }
 
     /// Expose the associated FUSE session file.
-    pub fn get_fuse_file(&mut self) -> Option<&File> {
+    pub fn get_fuse_file(&self) -> Option<&File> {
         self.file.as_ref()
     }
 
diff --git a/src/transport/fusedev/macos_session.rs b/src/transport/fusedev/macos_session.rs
index 272ef8eaf..158159e9b 100644
--- a/src/transport/fusedev/macos_session.rs
+++ b/src/transport/fusedev/macos_session.rs
@@ -136,7 +136,7 @@ impl FuseSession {
     }
 
     /// Expose the associated FUSE session file.
-    pub fn get_fuse_file(&mut self) -> Option<&File> {
+    pub fn get_fuse_file(&self) -> Option<&File> {
         self.file.as_ref()
     }