diff --git a/include/sirit/sirit.h b/include/sirit/sirit.h
index 0003860..8fdd217 100644
--- a/include/sirit/sirit.h
+++ b/include/sirit/sirit.h
@@ -200,6 +200,10 @@ class Module {
     /// @return target
     Id Name(Id target, const std::string& name);
 
+    /// Assign a name string to a member of a structure type.
+    /// @return type
+    Id MemberName(Id type, std::uint32_t member, const std::string& name);
+
     /// Assign a Result <id> to a string for use by other debug instructions.
     Id String(const std::string& string);
 
diff --git a/src/insts/debug.cpp b/src/insts/debug.cpp
index d61dec1..0712d14 100644
--- a/src/insts/debug.cpp
+++ b/src/insts/debug.cpp
@@ -19,6 +19,15 @@ Id Module::Name(Id target, const std::string& name) {
     return target;
 }
 
+Id Module::MemberName(Id type, u32 member, const std::string& name) {
+    auto op{std::make_unique<Op>(spv::Op::OpMemberName)};
+    op->Add(type);
+    op->Add(member);
+    op->Add(name);
+    debug.push_back(std::move(op));
+    return type;
+}
+
 Id Module::String(const std::string& string) {
     auto op{std::make_unique<Op>(spv::Op::OpString, bound++)};
     op->Add(string);