diff --git a/naga/src/front/wgsl/lower/construction.rs b/naga/src/front/wgsl/lower/construction.rs
index 5e58c93892..2cd030dadc 100644
--- a/naga/src/front/wgsl/lower/construction.rs
+++ b/naga/src/front/wgsl/lower/construction.rs
@@ -346,6 +346,10 @@ impl<'source, 'temp> Lowerer<'source, 'temp> {
                     automatic_conversion_consensus(&components, ctx).map_err(|index| {
                         Error::InvalidConstructorComponentType(spans[index], index as i32)
                     })?;
+                // We actually only accept floating-point elements.
+                let consensus_scalar = consensus_scalar
+                    .automatic_conversion_combine(crate::Scalar::ABSTRACT_FLOAT)
+                    .unwrap_or(consensus_scalar);
                 ctx.convert_slice_to_common_scalar(&mut components, consensus_scalar)?;
                 let vec_ty = ctx.ensure_type_exists(consensus_scalar.to_inner_vector(rows));
 
diff --git a/naga/tests/in/abstract-types.wgsl b/naga/tests/in/abstract-types.wgsl
index f9f718bf01..0cf20b5d26 100644
--- a/naga/tests/in/abstract-types.wgsl
+++ b/naga/tests/in/abstract-types.wgsl
@@ -27,6 +27,10 @@ const xmfpaiafaiai: mat2x2<f32> = mat2x2(1, 2.0, 3, 4);
 const xmfpaiaiafai: mat2x2<f32> = mat2x2(1, 2, 3.0, 4);
 const xmfpaiaiaiaf: mat2x2<f32> = mat2x2(1, 2, 3, 4.0);
 
+const imfpaiaiaiai = mat2x2(1, 2, 3, 4);
+const imfpafaiaiai = mat2x2(1.0, 2, 3, 4);
+const imfpafafafaf = mat2x2(1.0, 2.0, 3.0, 4.0);
+
 const ivispai = vec2(1);
 const ivfspaf = vec2(1.0);
 const ivis_ai = vec2<i32>(1);
diff --git a/naga/tests/out/msl/abstract-types.msl b/naga/tests/out/msl/abstract-types.msl
index a9c89f7a9c..af4de25cc6 100644
--- a/naga/tests/out/msl/abstract-types.msl
+++ b/naga/tests/out/msl/abstract-types.msl
@@ -23,6 +23,9 @@ constant metal::float2x2 xmfpafaiaiai = metal::float2x2(metal::float2(1.0, 2.0),
 constant metal::float2x2 xmfpaiafaiai = metal::float2x2(metal::float2(1.0, 2.0), metal::float2(3.0, 4.0));
 constant metal::float2x2 xmfpaiaiafai = metal::float2x2(metal::float2(1.0, 2.0), metal::float2(3.0, 4.0));
 constant metal::float2x2 xmfpaiaiaiaf = metal::float2x2(metal::float2(1.0, 2.0), metal::float2(3.0, 4.0));
+constant metal::float2x2 imfpaiaiaiai = metal::float2x2(metal::float2(1.0, 2.0), metal::float2(3.0, 4.0));
+constant metal::float2x2 imfpafaiaiai = metal::float2x2(metal::float2(1.0, 2.0), metal::float2(3.0, 4.0));
+constant metal::float2x2 imfpafafafaf = metal::float2x2(metal::float2(1.0, 2.0), metal::float2(3.0, 4.0));
 constant metal::int2 ivispai = metal::int2(1);
 constant metal::float2 ivfspaf = metal::float2(1.0);
 constant metal::int2 ivis_ai = metal::int2(1);
diff --git a/naga/tests/out/wgsl/abstract-types.wgsl b/naga/tests/out/wgsl/abstract-types.wgsl
index 4096f9ff02..538be44df7 100644
--- a/naga/tests/out/wgsl/abstract-types.wgsl
+++ b/naga/tests/out/wgsl/abstract-types.wgsl
@@ -15,6 +15,9 @@ const xmfpafaiaiai: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0
 const xmfpaiafaiai: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
 const xmfpaiaiafai: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
 const xmfpaiaiaiaf: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
+const imfpaiaiaiai: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
+const imfpafaiaiai: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
+const imfpafafafaf: mat2x2<f32> = mat2x2<f32>(vec2<f32>(1.0, 2.0), vec2<f32>(3.0, 4.0));
 const ivispai: vec2<i32> = vec2(1);
 const ivfspaf: vec2<f32> = vec2(1.0);
 const ivis_ai: vec2<i32> = vec2(1);