diff --git a/tools/aapt2/Debug.cpp b/tools/aapt2/Debug.cpp
index f47d66e..3fa3900 100644
--- a/tools/aapt2/Debug.cpp
+++ b/tools/aapt2/Debug.cpp
@@ -445,7 +445,7 @@
   const size_t NS = pool->size();
   for (size_t s=0; s<NS; s++) {
     auto str = pool->string8ObjectAt(s);
-    printer->Print(StringPrintf("String #%zd : %s\n", s, str.has_value() ? str->string() : ""));
+    printer->Print(StringPrintf("String #%zd : %s\n", s, str.has_value() ? str->c_str() : ""));
   }
 }
 
diff --git a/tools/aapt2/cmd/Util.cpp b/tools/aapt2/cmd/Util.cpp
index 3244fb8..73a8d68 100644
--- a/tools/aapt2/cmd/Util.cpp
+++ b/tools/aapt2/cmd/Util.cpp
@@ -213,7 +213,7 @@
   }
   std::vector<std::string> sanitized_config_names;
   for (const auto &config : constraints.configs) {
-    sanitized_config_names.push_back(MakePackageSafeName(config.toString().string()));
+    sanitized_config_names.push_back(MakePackageSafeName(config.toString().c_str()));
   }
   split_name << "config." << util::Joiner(sanitized_config_names, "_");
 
diff --git a/tools/aapt2/format/binary/BinaryResourceParser.cpp b/tools/aapt2/format/binary/BinaryResourceParser.cpp
index c65c550..5ed8487 100644
--- a/tools/aapt2/format/binary/BinaryResourceParser.cpp
+++ b/tools/aapt2/format/binary/BinaryResourceParser.cpp
@@ -450,7 +450,7 @@
   const size_t count = entries.size();
   for (size_t i = 0; i < count; i++) {
     table_->included_packages_[entries.valueAt(i)] =
-        util::Utf16ToUtf8(StringPiece16(entries.keyAt(i).string()));
+        util::Utf16ToUtf8(StringPiece16(entries.keyAt(i).c_str()));
   }
   return true;
 }