diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9985ad4ad..7abb3bff5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY out)
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY out)
 
 find_package(GTest QUIET)
-add_executable(stim_test src/stim/str_util.test.cc)
+add_executable(stim_test empty.cc)
 target_link_libraries(stim_test GTest::gtest GTest::gtest_main)
-target_compile_options(stim_test PRIVATE -Wall -Wpedantic -g -fno-omit-frame-pointer -fno-strict-aliasing -fsanitize=undefined -fsanitize=address ${MACHINE_FLAG})
+target_compile_options(stim_test PRIVATE -Wall -Wpedantic -g -fno-omit-frame-pointer -fno-strict-aliasing -fsanitize=undefined -fsanitize=address)
 target_link_options(stim_test PRIVATE -g -fno-omit-frame-pointer -fsanitize=undefined -fsanitize=address)
diff --git a/empty.cc b/empty.cc
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/stim/str_util.test.cc b/src/stim/str_util.test.cc
deleted file mode 100644
index 6cc69ea9e..000000000
--- a/src/stim/str_util.test.cc
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2021 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "gtest/gtest.h"