diff --git a/src/ast/struct.cc b/src/ast/struct.cc
index 7868caa..a5f166f 100644
--- a/src/ast/struct.cc
+++ b/src/ast/struct.cc
@@ -44,10 +44,6 @@
 
 Struct::~Struct() = default;
 
-bool Struct::IsBlockDecorated() const {
-  return HasDecoration<StructBlockDecoration>(decorations);
-}
-
 const Struct* Struct::Clone(CloneContext* ctx) const {
   // Clone arguments outside of create() call to have deterministic ordering
   auto src = ctx->Clone(source);
diff --git a/src/ast/struct.h b/src/ast/struct.h
index f3a08c9..dd3ffa2 100644
--- a/src/ast/struct.h
+++ b/src/ast/struct.h
@@ -44,9 +44,6 @@
 
   ~Struct() override;
 
-  /// @returns true if the struct is block decorated
-  bool IsBlockDecorated() const;
-
   /// Clones this node and all transitive child nodes using the `CloneContext`
   /// `ctx`.
   /// @param ctx the clone context
diff --git a/src/inspector/inspector.cc b/src/inspector/inspector.cc
index 5fead48..c011a8e 100644
--- a/src/inspector/inspector.cc
+++ b/src/inspector/inspector.cc
@@ -318,7 +318,7 @@
   auto* func_sem = program_->Sem().Get(func);
   for (auto& ruv : func_sem->TransitivelyReferencedUniformVariables()) {
     const sem::Struct* s = ruv.first->Type()->UnwrapRef()->As<sem::Struct>();
-    if (s && s->IsBlockDecorated()) {
+    if (s) {
       size += s->Size();
     }
   }
@@ -382,10 +382,6 @@
       continue;
     }
 
-    if (!str->IsBlockDecorated()) {
-      continue;
-    }
-
     ResourceBinding entry;
     entry.resource_type = ResourceBinding::ResourceType::kUniformBuffer;
     entry.bind_group = binding_info.group->value;
diff --git a/src/reader/wgsl/parser_impl_global_decl_test.cc b/src/reader/wgsl/parser_impl_global_decl_test.cc
index 97ec487..ff21c57 100644
--- a/src/reader/wgsl/parser_impl_global_decl_test.cc
+++ b/src/reader/wgsl/parser_impl_global_decl_test.cc
@@ -182,7 +182,6 @@
   auto* str = t->As<ast::Struct>();
   EXPECT_EQ(str->name, program.Symbols().Get("A"));
   EXPECT_EQ(str->members.size(), 1u);
-  EXPECT_FALSE(str->IsBlockDecorated());
 
   const auto* ty = str->members[0]->type;
   ASSERT_TRUE(ty->Is<ast::Array>());
@@ -209,7 +208,6 @@
   auto* str = t->As<ast::Struct>();
   EXPECT_EQ(str->name, program.Symbols().Get("A"));
   EXPECT_EQ(str->members.size(), 1u);
-  EXPECT_TRUE(str->IsBlockDecorated());
 }
 
 TEST_F(ParserImplTest, GlobalDecl_Struct_Invalid) {
diff --git a/src/sem/struct.h b/src/sem/struct.h
index 3e3b62d..d7eab4b 100644
--- a/src/sem/struct.h
+++ b/src/sem/struct.h
@@ -142,9 +142,6 @@
     return pipeline_stage_uses_;
   }
 
-  /// @returns true if the struct has a block decoration
-  bool IsBlockDecorated() const { return declaration_->IsBlockDecorated(); }
-
   /// @returns the name for the type
   std::string type_name() const override;