diff --git a/source/slang/slang-check-decl.cpp b/source/slang/slang-check-decl.cpp
index c4d64c668f..ce3f1e64c1 100644
--- a/source/slang/slang-check-decl.cpp
+++ b/source/slang/slang-check-decl.cpp
@@ -2133,6 +2133,7 @@ void SemanticsDeclHeaderVisitor::visitStructDecl(StructDecl* structDecl)
         member->nameAndLoc.name = getName("inner");
         member->nameAndLoc.loc = structDecl->wrappedType.exp->loc;
         member->loc = member->nameAndLoc.loc;
+        addModifier(member, m_astBuilder->create<SynthesizedModifier>());
         structDecl->addMember(member);
     }
     checkVisibility(structDecl);
diff --git a/source/slang/slang-language-server-ast-lookup.cpp b/source/slang/slang-language-server-ast-lookup.cpp
index 3f738c504b..ebc3fe9ad0 100644
--- a/source/slang/slang-language-server-ast-lookup.cpp
+++ b/source/slang/slang-language-server-ast-lookup.cpp
@@ -665,6 +665,13 @@ bool _findAstNodeImpl(ASTLookupContext& context, SyntaxNode* node)
         {
             if (_isLocInRange(&context, decl->nameAndLoc.loc, _getDeclNameLength(decl->getName())))
             {
+                for (auto modifier : decl->modifiers)
+                {
+                    if (as<SynthesizedModifier>(modifier))
+                        return false;
+                    if (as<ImplicitParameterGroupElementTypeModifier>(modifier))
+                        return false;
+                }
                 ASTLookupResult result;
                 result.path = context.nodePath;
                 context.results.add(_Move(result));
diff --git a/source/slang/slang-language-server-semantic-tokens.cpp b/source/slang/slang-language-server-semantic-tokens.cpp
index 4ac40321c2..5d0e41ecb2 100644
--- a/source/slang/slang-language-server-semantic-tokens.cpp
+++ b/source/slang/slang-language-server-semantic-tokens.cpp
@@ -74,6 +74,8 @@ List<SemanticToken> getSemanticTokens(
                  .pathInfo.foundPath.getUnownedSlice()
                  .endsWithCaseInsensitive(fileName))
             return;
+        if (decl->hasModifier<SynthesizedModifier>())
+            return;
         SemanticToken token = _createSemanticToken(manager, loc, name);
         auto target = decl;
         if (as<AggTypeDecl>(target))
@@ -137,6 +139,17 @@ List<SemanticToken> getSemanticTokens(
         module->getModuleDecl(),
         [&](SyntaxNode* node)
         {
+            if (auto decl = as<Decl>(node))
+            {
+                for (auto modifier : decl->modifiers)
+                {
+                    if (as<SynthesizedModifier>(modifier))
+                        return;
+                    if (as<ImplicitParameterGroupElementTypeModifier>(modifier))
+                        return;
+                }
+            }
+
             if (auto declRefExpr = as<DeclRefExpr>(node))
             {
                 handleDeclRef(
@@ -173,19 +186,16 @@ List<SemanticToken> getSemanticTokens(
                     maybeInsertToken(token);
                 }
             }
-            else if (auto aggTypeDecl = as<AggTypeDeclBase>(node))
+            else if (auto aggTypeDeclBase = as<AggTypeDeclBase>(node))
             {
-                if (aggTypeDecl->getName() &&
-                    aggTypeDecl->findModifier<ImplicitParameterGroupElementTypeModifier>() ==
-                        nullptr)
-                {
-                    SemanticToken token = _createSemanticToken(
-                        manager,
-                        aggTypeDecl->getNameLoc(),
-                        aggTypeDecl->getName());
-                    token.type = SemanticTokenType::Type;
-                    maybeInsertToken(token);
-                }
+                if (!aggTypeDeclBase->getName())
+                    return;
+                SemanticToken token = _createSemanticToken(
+                    manager,
+                    aggTypeDeclBase->getNameLoc(),
+                    aggTypeDeclBase->getName());
+                token.type = SemanticTokenType::Type;
+                maybeInsertToken(token);
             }
             else if (auto enumCase = as<EnumCaseDecl>(node))
             {