diff --git a/lib/core/libimagrt/src/runtime.rs b/lib/core/libimagrt/src/runtime.rs
index b1b505b8..8845616d 100644
--- a/lib/core/libimagrt/src/runtime.rs
+++ b/lib/core/libimagrt/src/runtime.rs
@@ -364,6 +364,7 @@ impl<'a> Runtime<'a> {
 
             // safe debug output for later, after the instance itself
             // is moved away
+            #[allow(unused)]
             let logger_expl = format!("{:?}", logger);
 
             set_boxed_logger(Box::new(logger))