diff --git a/crates/bevy_ptr/src/lib.rs b/crates/bevy_ptr/src/lib.rs
index 51be4dff1e..5010c93135 100644
--- a/crates/bevy_ptr/src/lib.rs
+++ b/crates/bevy_ptr/src/lib.rs
@@ -314,7 +314,7 @@ impl<'a, A: IsAligned> Ptr<'a, A> {
     }
 }
 
-impl<'a, T> From<&'a T> for Ptr<'a> {
+impl<'a, T: ?Sized> From<&'a T> for Ptr<'a> {
     #[inline]
     fn from(val: &'a T) -> Self {
         // SAFETY: The returned pointer has the same lifetime as the passed reference.
@@ -384,7 +384,7 @@ impl<'a, A: IsAligned> PtrMut<'a, A> {
     }
 }
 
-impl<'a, T> From<&'a mut T> for PtrMut<'a> {
+impl<'a, T: ?Sized> From<&'a mut T> for PtrMut<'a> {
     #[inline]
     fn from(val: &'a mut T) -> Self {
         // SAFETY: The returned pointer has the same lifetime as the passed reference.