diff --git a/y2023/localizer/map_expander.cc b/y2023/localizer/map_expander.cc
index 32efcd8..9582c6b 100644
--- a/y2023/localizer/map_expander.cc
+++ b/y2023/localizer/map_expander.cc
@@ -1,24 +1,25 @@
-#include "gflags/gflags.h"
+#include "absl/flags/flag.h"
 
 #include "aos/init.h"
 #include "aos/util/file.h"
 #include "y2023/localizer/map_expander_lib.h"
 
-DEFINE_string(target_map, "y2023/vision/maps/target_map.json",
-              "Path to the target map JSON file.");
-DEFINE_string(relative_map, "y2023/constants/relative_scoring_map.json",
-              "Path to the relative scoring map JSON file.");
-DEFINE_string(output, "y2023/constants/scoring_map.json",
-              "Path to the output scoring map JSON file.");
+ABSL_FLAG(std::string, target_map, "y2023/vision/maps/target_map.json",
+          "Path to the target map JSON file.");
+ABSL_FLAG(std::string, relative_map,
+          "y2023/constants/relative_scoring_map.json",
+          "Path to the relative scoring map JSON file.");
+ABSL_FLAG(std::string, output, "y2023/constants/scoring_map.json",
+          "Path to the output scoring map JSON file.");
 
 int main(int argc, char *argv[]) {
   aos::InitGoogle(&argc, &argv);
   aos::FlatbufferDetachedBuffer<y2023::localizer::ScoringMap> map =
       y2023::localizer::ExpandMap(
-          aos::util::ReadFileToStringOrDie(FLAGS_relative_map),
-          aos::util::ReadFileToStringOrDie(FLAGS_target_map));
+          aos::util::ReadFileToStringOrDie(absl::GetFlag(FLAGS_relative_map)),
+          aos::util::ReadFileToStringOrDie(absl::GetFlag(FLAGS_target_map)));
   aos::util::WriteStringToFileOrDie(
-      FLAGS_output,
+      absl::GetFlag(FLAGS_output),
       aos::FlatbufferToJson(map, {.multi_line = true, .max_multi_line = true}));
   return EXIT_SUCCESS;
 }