diff --git a/src/backend/jit/llvm/llvmjit.c b/src/backend/jit/llvm/llvmjit.c
index 07a720d3e4..8e717875c3 100644
--- a/src/backend/jit/llvm/llvmjit.c
+++ b/src/backend/jit/llvm/llvmjit.c
@@ -570,8 +570,11 @@ llvm_copy_attributes(LLVMValueRef v_from, LLVMValueRef v_to)
 	/* copy function attributes */
 	llvm_copy_attributes_at_index(v_from, v_to, LLVMAttributeFunctionIndex);
 
-	/* and the return value attributes */
-	llvm_copy_attributes_at_index(v_from, v_to, LLVMAttributeReturnIndex);
+	if (LLVMGetTypeKind(LLVMGetFunctionReturnType(v_to)) != LLVMVoidTypeKind)
+	{
+		/* and the return value attributes */
+		llvm_copy_attributes_at_index(v_from, v_to, LLVMAttributeReturnIndex);
+	}
 
 	/* and each function parameter's attribute */
 	param_count = LLVMCountParams(v_from);