diff --git a/compiler/rustc_type_ir/src/predicate.rs b/compiler/rustc_type_ir/src/predicate.rs
index 82a7bf314a949..e4bf1e1379c95 100644
--- a/compiler/rustc_type_ir/src/predicate.rs
+++ b/compiler/rustc_type_ir/src/predicate.rs
@@ -197,8 +197,7 @@ impl fmt::Display for ImplPolarity {
 }
 
 impl ImplPolarity {
-    /// Typically used to decorate the impl trait message by adding the corresponding
-    /// polarity marker before the trait name.
+    /// The polarity marker in front of the impl trait ref if applicable.
     pub fn as_str(self) -> &'static str {
         match self {
             Self::Positive => "",
diff --git a/tests/ui/coherence/coherence-conflicting-repeated-negative-trait-impl-70849.rs b/tests/ui/coherence/coherence-conflicting-repeated-negative-trait-impl-70849.rs
index d0ef2560c5ab4..88b9d9e62bf75 100644
--- a/tests/ui/coherence/coherence-conflicting-repeated-negative-trait-impl-70849.rs
+++ b/tests/ui/coherence/coherence-conflicting-repeated-negative-trait-impl-70849.rs
@@ -1,7 +1,7 @@
 #![feature(negative_impls)]
 //@ edition: 2021
-// Test to ensure we are printing the polarity of the trait when printing out
-// conflicting trait impls
+// Test to ensure we are printing the polarity of the impl trait ref
+// when printing out conflicting trait impls
 
 struct MyType;