diff --git a/src/renderer/renderer.rs b/src/renderer/renderer.rs
index 94c6e3b..d5fe632 100644
--- a/src/renderer/renderer.rs
+++ b/src/renderer/renderer.rs
@@ -112,7 +112,7 @@ impl<'a> DustRenderer<'a> {
 mod tests {
     use super::*;
 
-    impl<'a, I: Walkable> Walkable for HashMap<&str, I> {
+    impl<I: Walkable> Walkable for HashMap<&str, I> {
         fn walk(&self, segment: &str) -> &dyn Walkable {
             self.get(segment).unwrap()
         }
@@ -122,7 +122,7 @@ mod tests {
         }
     }
 
-    impl<'a> Walkable for &str {
+    impl Walkable for &str {
         fn walk(&self, segment: &str) -> &dyn Walkable {
             panic!("Tried to walk down a str");
         }
@@ -132,7 +132,7 @@ mod tests {
         }
     }
 
-    impl<'a> Walkable for u32 {
+    impl Walkable for u32 {
         fn walk(&self, segment: &str) -> &dyn Walkable {
             panic!("Tried to walk down a str");
         }