diff --git a/naga/src/diagnostic_filter.rs b/naga/src/diagnostic_filter.rs
index bbfd9d58c..48fe44af3 100644
--- a/naga/src/diagnostic_filter.rs
+++ b/naga/src/diagnostic_filter.rs
@@ -152,7 +152,6 @@ impl DiagnosticFilterMap {
                 };
                 if first_severity != new_severity || should_conflict_on_full_duplicate {
                     return Err(ConflictingDiagnosticRuleError {
-                        triggering_rule,
                         triggering_rule_spans: [first_span, span],
                     });
                 }
@@ -190,7 +189,6 @@ impl IntoIterator for DiagnosticFilterMap {
 #[cfg(feature = "wgsl-in")]
 #[derive(Clone, Debug)]
 pub(crate) struct ConflictingDiagnosticRuleError {
-    pub triggering_rule: FilterableTriggeringRule,
     pub triggering_rule_spans: [Span; 2],
 }
 
diff --git a/naga/src/front/wgsl/error.rs b/naga/src/front/wgsl/error.rs
index 94570bcee..f827ca50f 100644
--- a/naga/src/front/wgsl/error.rs
+++ b/naga/src/front/wgsl/error.rs
@@ -1034,15 +1034,11 @@ impl<'a> Error<'a> {
                 .into()],
             },
             Error::DiagnosticDuplicateTriggeringRule(ConflictingDiagnosticRuleError {
-                ref triggering_rule,
                 triggering_rule_spans,
             }) => {
                 let [first_span, second_span] = triggering_rule_spans;
                 ParseError {
-                    message: format!(
-                        "found conflicting `diagnostic(…)` rule(s) for `{}`",
-                        triggering_rule.to_wgsl_ident()
-                    ),
+                    message: "found conflicting `diagnostic(…)` rule(s)".into(),
                     labels: vec![
                         (first_span, "first rule".into()),
                         (second_span, "second rule".into()),