diff --git a/7-temperature_convertion/src/main.rs b/7-temperature_convertion/src/main.rs
index 676aac5..ea8942b 100644
--- a/7-temperature_convertion/src/main.rs
+++ b/7-temperature_convertion/src/main.rs
@@ -1,5 +1,5 @@
 use std::io;
-fn get_input() -> u32
+fn get_input() -> i32
     {
         loop
             {