diff --git a/mediapipe/util/resource_util_android.cc b/mediapipe/util/resource_util_android.cc
index b18354d5..1e970f21 100644
--- a/mediapipe/util/resource_util_android.cc
+++ b/mediapipe/util/resource_util_android.cc
@@ -82,7 +82,8 @@ absl::StatusOr<std::string> PathToResourceAsFile(const std::string& path) {
   // If that fails, assume it was a relative path, and try just the base name.
   {
     const size_t last_slash_idx = path.find_last_of("\\/");
-    CHECK_NE(last_slash_idx, std::string::npos);  // Make sure it's a path.
+    RET_CHECK(last_slash_idx != std::string::npos)
+        << path << " doesn't have a slash in it";  // Make sure it's a path.
     auto base_name = path.substr(last_slash_idx + 1);
     auto status_or_path = PathToResourceAsFileInternal(base_name);
     if (status_or_path.ok()) {
diff --git a/mediapipe/util/resource_util_apple.cc b/mediapipe/util/resource_util_apple.cc
index c812dcb5..f6471834 100644
--- a/mediapipe/util/resource_util_apple.cc
+++ b/mediapipe/util/resource_util_apple.cc
@@ -71,7 +71,8 @@ absl::StatusOr<std::string> PathToResourceAsFile(const std::string& path) {
   // If that fails, assume it was a relative path, and try just the base name.
   {
     const size_t last_slash_idx = path.find_last_of("\\/");
-    CHECK_NE(last_slash_idx, std::string::npos);  // Make sure it's a path.
+    RET_CHECK(last_slash_idx != std::string::npos)
+        << path << " doesn't have a slash in it";  // Make sure it's a path.
     auto base_name = path.substr(last_slash_idx + 1);
     auto status_or_path = PathToResourceAsFileInternal(base_name);
     if (status_or_path.ok()) {