diff --git a/rust/src/interaction/handler.rs b/rust/src/interaction/handler.rs
index 11929c9403..2af63eb10f 100644
--- a/rust/src/interaction/handler.rs
+++ b/rust/src/interaction/handler.rs
@@ -272,11 +272,9 @@ pub struct InteractionHandlerTask {
     ctxt: *mut c_void,
     task: Option<
         unsafe extern "C" fn(
-            taskCtxt: *mut c_void,
-            progress: Option<
-                unsafe extern "C" fn(progressCtxt: *mut c_void, cur: usize, max: usize) -> bool,
-            >,
-            progressCtxt: *mut c_void,
+            *mut c_void,
+            progress: Option<unsafe extern "C" fn(*mut c_void, cur: usize, max: usize) -> bool>,
+            *mut c_void,
         ),
     >,
 }