diff --git a/naga/src/front/wgsl/lower/construction.rs b/naga/src/front/wgsl/lower/construction.rs
index c7e4106460..96cc45bfa5 100644
--- a/naga/src/front/wgsl/lower/construction.rs
+++ b/naga/src/front/wgsl/lower/construction.rs
@@ -448,7 +448,7 @@ impl<'source, 'temp> Lowerer<'source, 'temp> {
                 ctx.try_automatic_conversions_slice(
                     &mut components,
                     &Tr::Value(component_ty),
-                    span,
+                    ty_span,
                 )?;
                 expr = crate::Expression::Compose { ty, components };
             }
@@ -497,7 +497,7 @@ impl<'source, 'temp> Lowerer<'source, 'temp> {
             // Array constructor, explicit type
             (components, Constructor::Type((ty, &crate::TypeInner::Array { base, .. }))) => {
                 let mut components = components.into_components_vec();
-                ctx.try_automatic_conversions_slice(&mut components, &Tr::Handle(base), span)?;
+                ctx.try_automatic_conversions_slice(&mut components, &Tr::Handle(base), ty_span)?;
                 expr = crate::Expression::Compose { ty, components };
             }
 
diff --git a/naga/tests/wgsl_errors.rs b/naga/tests/wgsl_errors.rs
index 56ca313464..b74f805f0d 100644
--- a/naga/tests/wgsl_errors.rs
+++ b/naga/tests/wgsl_errors.rs
@@ -213,9 +213,8 @@ fn constructor_parameter_type_mismatch() {
   ┌─ wgsl:3:21
   │
 3 │                 _ = mat2x2<f32>(array(0, 1), vec2(2, 3));
-  │                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  │                     │           │
-  │                     │           this expression has type array<{AbstractInt}, 2>
+  │                     ^^^^^^^^^^^ ^^^^^^^^^^^ this expression has type array<{AbstractInt}, 2>
+  │                     │            
   │                     a value of type vec2<f32> is required here
 
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