diff --git a/compiler/rustc_const_eval/src/interpret/place.rs b/compiler/rustc_const_eval/src/interpret/place.rs
index b328892906d..bc1aa43b73a 100644
--- a/compiler/rustc_const_eval/src/interpret/place.rs
+++ b/compiler/rustc_const_eval/src/interpret/place.rs
@@ -280,7 +280,7 @@ pub fn try_as_mplace(&self) -> Result<MPlaceTy<'tcx, Prov>, (usize, mir::Local)>
 
     #[inline(always)]
     #[cfg_attr(debug_assertions, track_caller)] // only in debug builds due to perf (see #98980)
-    pub fn assert_mem_place(self) -> MPlaceTy<'tcx, Prov> {
+    pub fn assert_mem_place(&self) -> MPlaceTy<'tcx, Prov> {
         self.try_as_mplace().unwrap()
     }
 }