diff --git a/crates/bevy_ecs/src/system/system_registry.rs b/crates/bevy_ecs/src/system/system_registry.rs
index 96b1ea9471ab0..10b57903189e4 100644
--- a/crates/bevy_ecs/src/system/system_registry.rs
+++ b/crates/bevy_ecs/src/system/system_registry.rs
@@ -94,10 +94,7 @@ impl<I, O> std::hash::Hash for SystemId<I, O> {
 
 impl<I, O> std::fmt::Debug for SystemId<I, O> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.debug_tuple("SystemId")
-            .field(&self.entity)
-            .field(&self.entity)
-            .finish()
+        f.debug_tuple("SystemId").field(&self.entity).finish()
     }
 }