diff --git a/rust/tool/src/generation.rs b/rust/tool/src/generation.rs
index ab25ab3..41c0525 100644
--- a/rust/tool/src/generation.rs
+++ b/rust/tool/src/generation.rs
@@ -95,7 +95,7 @@ impl fmt::Display for Generation {
 }
 
 fn read_build_time(path: &Path) -> Result<Date> {
-    let build_time = time::OffsetDateTime::from(fs::metadata(path)?.created().unwrap()).date();
+    let build_time = time::OffsetDateTime::from(fs::metadata(path)?.created()?).date();
     Ok(build_time)
 }