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-rw-r--r--rustlings/exercises/16_lifetimes/lifetimes1.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/rustlings/exercises/16_lifetimes/lifetimes1.rs b/rustlings/exercises/16_lifetimes/lifetimes1.rs
index 19e2d39..683bd75 100644
--- a/rustlings/exercises/16_lifetimes/lifetimes1.rs
+++ b/rustlings/exercises/16_lifetimes/lifetimes1.rs
@@ -4,7 +4,7 @@
// not own their own data. What if their owner goes out of scope?
// TODO: Fix the compiler error by updating the function signature.
-fn longest(x: &str, y: &str) -> &str {
+fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
if x.len() > y.len() {
x
} else {