diff --git a/compiler/rustc_lint/src/for_loop_over_fallibles.rs b/compiler/rustc_lint/src/for_loop_over_fallibles.rs
index 69d8fd84b64..c8d5586d39f 100644
--- a/compiler/rustc_lint/src/for_loop_over_fallibles.rs
+++ b/compiler/rustc_lint/src/for_loop_over_fallibles.rs
@@ -82,7 +82,7 @@ impl<'tcx> LateLintPass<'tcx> for ForLoopOverFallibles {
                 warn.span_suggestion(
                     recv.span.between(arg.span.shrink_to_hi()),
                     format!("to iterate over `{recv_snip}` remove the call to `next`"),
-                    "",
+                    ".by_ref()",
                     Applicability::MaybeIncorrect
                 );
             } else {
diff --git a/src/test/ui/lint/for_loop_over_fallibles.stderr b/src/test/ui/lint/for_loop_over_fallibles.stderr
index 52eac945d85..56e3126dc09 100644
--- a/src/test/ui/lint/for_loop_over_fallibles.stderr
+++ b/src/test/ui/lint/for_loop_over_fallibles.stderr
@@ -37,9 +37,8 @@ LL |     for _ in [0; 0].iter().next() {}
    |
 help: to iterate over `[0; 0].iter()` remove the call to `next`
    |
-LL -     for _ in [0; 0].iter().next() {}
-LL +     for _ in [0; 0].iter() {}
-   |
+LL |     for _ in [0; 0].iter().by_ref() {}
+   |                           ~~~~~~~~~
 help: consider using `if let` to clear intent
    |
 LL |     if let Some(_) = [0; 0].iter().next() {}