diff --git a/bridge/go-llvm-materialize.cpp b/bridge/go-llvm-materialize.cpp
index c72f526..d58391e 100644
--- a/bridge/go-llvm-materialize.cpp
+++ b/bridge/go-llvm-materialize.cpp
@@ -1328,7 +1328,7 @@
   const CABIParamInfo &returnInfo = state.oracle.returnInfo();
   if (returnInfo.disp() == ParmIndirect) {
     llvm::AttrBuilder ab;
-    ab.addAttribute(llvm::Attribute::StructRet);
+    ab.addStructRetAttr(state.calleeFcnType->resultType()->type());
     ab.addAttribute(llvm::Attribute::get(call->getContext(), "go_sret"));
     argAttrs[0] = llvm::AttributeSet::get(context_, ab);
   }
diff --git a/unittests/BackendCore/BackendCABIOracleTests.cpp b/unittests/BackendCore/BackendCABIOracleTests.cpp
index 454c216..87ae3ae 100644
--- a/unittests/BackendCore/BackendCABIOracleTests.cpp
+++ b/unittests/BackendCore/BackendCABIOracleTests.cpp
@@ -718,7 +718,7 @@
   DECLARE_EXPECTED_OUTPUT(exp, R"RAW_RESULT(
     %cast.0 = bitcast [2 x float]* %p0.addr to <2 x float>*
     %ld.0 = load <2 x float>, <2 x float>* %cast.0, align 8
-    call addrspace(0) void @foo([3 x double]* sret "go_sret" %sret.actual.0, i8* nest undef, <2 x float> %ld.0)
+    call addrspace(0) void @foo([3 x double]* sret([3 x double]) "go_sret" %sret.actual.0, i8* nest undef, <2 x float> %ld.0)
     %cast.1 = bitcast [3 x double]* %sret.formal.0 to i8*
     %cast.2 = bitcast [3 x double]* %sret.actual.0 to i8*
     call addrspace(0) void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %cast.1, i8* align 8 %cast.2, i64 24, i1 false)