diff --git a/crates/bevy_pbr/src/light.rs b/crates/bevy_pbr/src/light.rs
index 046ebd60c2..24b0a68751 100644
--- a/crates/bevy_pbr/src/light.rs
+++ b/crates/bevy_pbr/src/light.rs
@@ -28,7 +28,8 @@ impl Default for PointLight {
 pub(crate) struct PointLightUniform {
     pub pos: [f32; 4],
     pub color: [f32; 4],
-    pub inverse_range_squared: f32,
+    // storing as a `[f32; 4]` for memory alignement
+    pub inverse_range_squared: [f32; 4],
 }
 
 unsafe impl Byteable for PointLightUniform {}
@@ -43,7 +44,7 @@ impl PointLightUniform {
         PointLightUniform {
             pos: [x, y, z, 1.0],
             color,
-            inverse_range_squared: 1.0 / (light.range * light.range),
+            inverse_range_squared: [1.0 / (light.range * light.range), 0., 0., 0.],
         }
     }
 }
diff --git a/crates/bevy_pbr/src/render_graph/lights_node.rs b/crates/bevy_pbr/src/render_graph/lights_node.rs
index 8dfb20cf6c..8f89570eae 100644
--- a/crates/bevy_pbr/src/render_graph/lights_node.rs
+++ b/crates/bevy_pbr/src/render_graph/lights_node.rs
@@ -47,6 +47,7 @@ impl Node for LightsNode {
 #[repr(C)]
 #[derive(Debug, Clone, Copy)]
 struct LightCount {
+    // storing as a `[u32; 4]` for memory alignement
     pub num_lights: [u32; 4],
 }