diff --git a/src/zip/mod.rs b/src/zip/mod.rs
index 182ab7232..2b6612b54 100644
--- a/src/zip/mod.rs
+++ b/src/zip/mod.rs
@@ -1085,7 +1085,7 @@ macro_rules! map_impl {
                     // For generic elements, use a proxy that counts the number of filled elements,
                     // and can drop the right number of elements on unwinding
                     unsafe {
-                        PartialArray::scope(output.view_mut(), |partial| {
+                        PartialArray::scope(output.view_mut(), move |partial| {
                             debug_assert_eq!(partial.layout().tendency() >= 0, self.layout_tendency >= 0);
                             self.apply_assign_into(partial, f);
                         });