diff --git a/src/reader/wgsl/parser_impl.h b/src/reader/wgsl/parser_impl.h
index 55cd25a..19b29b8 100644
--- a/src/reader/wgsl/parser_impl.h
+++ b/src/reader/wgsl/parser_impl.h
@@ -112,7 +112,7 @@
     /// return type will always be a pointer to a non-pointer type. #errored
     /// must be false to call.
     inline typename detail::OperatorArrow<T>::type operator->() {
-      TINT_ASSERT(!errored);
+      TINT_ASSERT(Reader, !errored);
       return detail::OperatorArrow<T>::ptr(value);
     }
 
@@ -183,7 +183,7 @@
     /// return type will always be a pointer to a non-pointer type. #errored
     /// must be false to call.
     inline typename detail::OperatorArrow<T>::type operator->() {
-      TINT_ASSERT(!errored);
+      TINT_ASSERT(Reader, !errored);
       return detail::OperatorArrow<T>::ptr(value);
     }