diff --git a/src/front/glsl/offset.rs b/src/front/glsl/offset.rs
index 9b9f7957db..2c2140b932 100644
--- a/src/front/glsl/offset.rs
+++ b/src/front/glsl/offset.rs
@@ -142,6 +142,8 @@ pub fn calculate_offset(
                 span += info.span;
             }
 
+            span = align_up(span, align);
+
             let ty_span = types.get_span(ty).clone();
             ty = types.fetch_or_append(
                 Type {