diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b6e6a5f..f9395f9a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -662,10 +662,10 @@ list(APPEND LIBDWARFS_WRITER_SRC
   src/dwarfs/internal/global_entry_data.cpp
   src/dwarfs/internal/inode_manager.cpp
   src/dwarfs/internal/metadata_freezer.cpp
+  src/dwarfs/internal/scanner_progress.cpp
   src/dwarfs/nilsimsa.cpp
   src/dwarfs/progress.cpp
   src/dwarfs/scanner.cpp
-  src/dwarfs/scanner_progress.cpp
   src/dwarfs/segmenter.cpp
   src/dwarfs/segmenter_factory.cpp
   src/dwarfs/similarity.cpp
diff --git a/include/dwarfs/scanner_progress.h b/include/dwarfs/internal/scanner_progress.h
similarity index 95%
rename from include/dwarfs/scanner_progress.h
rename to include/dwarfs/internal/scanner_progress.h
index 693e716b..45016ea5 100644
--- a/include/dwarfs/scanner_progress.h
+++ b/include/dwarfs/internal/scanner_progress.h
@@ -27,7 +27,7 @@
 #include <dwarfs/progress.h>
 #include <dwarfs/terminal.h>
 
-namespace dwarfs {
+namespace dwarfs::internal {
 
 class scanner_progress : public progress::context {
  public:
@@ -48,4 +48,4 @@ class scanner_progress : public progress::context {
   size_t const bytes_total_;
 };
 
-} // namespace dwarfs
+} // namespace dwarfs::internal
diff --git a/src/dwarfs/entry.cpp b/src/dwarfs/entry.cpp
index 2b870aa0..2378561b 100644
--- a/src/dwarfs/entry.cpp
+++ b/src/dwarfs/entry.cpp
@@ -35,10 +35,10 @@
 #include <dwarfs/options.h>
 #include <dwarfs/os_access.h>
 #include <dwarfs/progress.h>
-#include <dwarfs/scanner_progress.h>
 #include <dwarfs/util.h>
 
 #include <dwarfs/internal/global_entry_data.h>
+#include <dwarfs/internal/scanner_progress.h>
 
 #include <dwarfs/gen-cpp2/metadata_types.h>
 
@@ -222,11 +222,11 @@ void file::scan(mmif* mm, progress& prog,
     checksum cs(*hash_alg);
 
     if (s > 0) {
-      std::shared_ptr<scanner_progress> pctx;
+      std::shared_ptr<internal::scanner_progress> pctx;
       auto const chunk_size = prog.hash.chunk_size.load();
 
       if (s >= 4 * chunk_size) {
-        pctx = prog.create_context<scanner_progress>(
+        pctx = prog.create_context<internal::scanner_progress>(
             termcolor::MAGENTA, kHashContext, path_as_string(), s);
       }
 
diff --git a/src/dwarfs/internal/inode_manager.cpp b/src/dwarfs/internal/inode_manager.cpp
index 6a06abcb..de9bc7fe 100644
--- a/src/dwarfs/internal/inode_manager.cpp
+++ b/src/dwarfs/internal/inode_manager.cpp
@@ -53,13 +53,13 @@
 #include <dwarfs/os_access.h>
 #include <dwarfs/progress.h>
 #include <dwarfs/promise_receiver.h>
-#include <dwarfs/scanner_progress.h>
 #include <dwarfs/script.h>
 #include <dwarfs/similarity.h>
 #include <dwarfs/similarity_ordering.h>
 #include <dwarfs/util.h>
 
 #include <dwarfs/internal/inode_manager.h>
+#include <dwarfs/internal/scanner_progress.h>
 #include <dwarfs/internal/worker_group.h>
 
 #include <dwarfs/gen-cpp2/metadata_types.h>
diff --git a/src/dwarfs/scanner_progress.cpp b/src/dwarfs/internal/scanner_progress.cpp
similarity index 93%
rename from src/dwarfs/scanner_progress.cpp
rename to src/dwarfs/internal/scanner_progress.cpp
index c23dec6e..339e4da7 100644
--- a/src/dwarfs/scanner_progress.cpp
+++ b/src/dwarfs/internal/scanner_progress.cpp
@@ -19,9 +19,9 @@
  * along with dwarfs.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-#include <dwarfs/scanner_progress.h>
+#include <dwarfs/internal/scanner_progress.h>
 
-namespace dwarfs {
+namespace dwarfs::internal {
 
 scanner_progress::scanner_progress(std::string_view context, std::string file,
                                    size_t size)
@@ -44,4 +44,4 @@ auto scanner_progress::get_status() const -> status {
   return st;
 }
 
-} // namespace dwarfs
+} // namespace dwarfs::internal