diff --git a/src/file_load.rs b/src/file_load.rs
index 1c6f6b9..099a617 100644
--- a/src/file_load.rs
+++ b/src/file_load.rs
@@ -32,7 +32,7 @@ pub fn parse_file<P, T>(p: P) -> Result<Vec<T>, Box<dyn Error>>
 where
     P: AsRef<Path>,
     T: FromStr<Err = Box<dyn Error>>,
-    <T as FromStr>::Err: Error + 'static,
+    for<'trivial_bound> <T as FromStr>::Err: Error + 'static,
 {
     let contents = read_file(p)?;