diff --git a/mediapipe/tasks/c/components/processors/classifier_options_converter.cc b/mediapipe/tasks/c/components/processors/classifier_options_converter.cc
index e7a8f4e4..eca2b3d3 100644
--- a/mediapipe/tasks/c/components/processors/classifier_options_converter.cc
+++ b/mediapipe/tasks/c/components/processors/classifier_options_converter.cc
@@ -14,6 +14,7 @@ limitations under the License.
 ==============================================================================*/
 
 #include <cstdint>
+#include <string>
 #include <vector>
 
 #include "mediapipe/tasks/c/components/processors/classifier_options.h"
@@ -24,7 +25,8 @@ namespace mediapipe::tasks::c::components::processors {
 void CppConvertToClassifierOptions(
     const ClassifierOptions& in,
     mediapipe::tasks::components::processors::ClassifierOptions* out) {
-  out->display_names_locale = in.display_names_locale;
+  out->display_names_locale =
+      in.display_names_locale ? std::string(in.display_names_locale) : "";
   out->max_results = in.max_results;
   out->score_threshold = in.score_threshold;
   out->category_allowlist =
diff --git a/mediapipe/tasks/c/core/base_options_converter.cc b/mediapipe/tasks/c/core/base_options_converter.cc
index c06d86b1..78f5edb4 100644
--- a/mediapipe/tasks/c/core/base_options_converter.cc
+++ b/mediapipe/tasks/c/core/base_options_converter.cc
@@ -15,6 +15,9 @@ limitations under the License.
 
 #include "mediapipe/tasks/c/core/base_options_converter.h"
 
+#include <memory>
+#include <string>
+
 #include "mediapipe/tasks/c/core/base_options.h"
 #include "mediapipe/tasks/cc/core/base_options.h"
 
@@ -23,8 +26,11 @@ namespace mediapipe::tasks::c::components::containers {
 void CppConvertToBaseOptions(const BaseOptions& in,
                              mediapipe::tasks::core::BaseOptions* out) {
   out->model_asset_buffer =
-      std::make_unique<std::string>(in.model_asset_buffer);
-  out->model_asset_path = in.model_asset_path;
+      in.model_asset_buffer
+          ? std::make_unique<std::string>(in.model_asset_buffer)
+          : nullptr;
+  out->model_asset_path =
+      in.model_asset_path ? std::string(in.model_asset_path) : "";
 }
 
 }  // namespace mediapipe::tasks::c::components::containers