diff --git a/src/tests/annotation_tests.cpp b/src/tests/annotation_tests.cpp
index 3e42bae..d323b9d 100644
--- a/src/tests/annotation_tests.cpp
+++ b/src/tests/annotation_tests.cpp
@@ -1,5 +1,5 @@
 #include "catch.hpp"
-#include "translator/sentence_ranges.h"
+#include "translator/annotation.h"
 #include <random>
 #include <vector>
 
diff --git a/src/translator/CMakeLists.txt b/src/translator/CMakeLists.txt
index 25ca916..a7ba0d3 100644
--- a/src/translator/CMakeLists.txt
+++ b/src/translator/CMakeLists.txt
@@ -7,7 +7,7 @@ add_library(bergamot-translator STATIC
     batcher.cpp
     response_builder.cpp
     batch.cpp
-    sentence_ranges.cpp
+    annotation.cpp
     service.cpp
 )
 if (USE_WASM_COMPATIBLE_SOURCE)
diff --git a/src/translator/sentence_ranges.cpp b/src/translator/annotation.cpp
similarity index 99%
rename from src/translator/sentence_ranges.cpp
rename to src/translator/annotation.cpp
index 603d9bf..c27d784 100644
--- a/src/translator/sentence_ranges.cpp
+++ b/src/translator/annotation.cpp
@@ -1,4 +1,4 @@
-#include "sentence_ranges.h"
+#include "annotation.h"
 #include <cassert>
 #include <iostream>
 
diff --git a/src/translator/sentence_ranges.h b/src/translator/annotation.h
similarity index 100%
rename from src/translator/sentence_ranges.h
rename to src/translator/annotation.h
diff --git a/src/translator/request.cpp b/src/translator/request.cpp
index 8e46533..37b164f 100644
--- a/src/translator/request.cpp
+++ b/src/translator/request.cpp
@@ -1,7 +1,7 @@
 #include "request.h"
 #include "definitions.h"
 #include "response.h"
-#include "sentence_ranges.h"
+#include "annotation.h"
 
 #include "common/logging.h"
 
diff --git a/src/translator/request.h b/src/translator/request.h
index e2188cd..7983680 100644
--- a/src/translator/request.h
+++ b/src/translator/request.h
@@ -4,7 +4,7 @@
 #include "definitions.h"
 #include "response.h"
 #include "response_builder.h"
-#include "sentence_ranges.h"
+#include "annotation.h"
 
 #include "common/logging.h"
 #include "data/types.h"
diff --git a/src/translator/response.h b/src/translator/response.h
index 0f7ecb5..5d4ea78 100644
--- a/src/translator/response.h
+++ b/src/translator/response.h
@@ -4,7 +4,7 @@
 #include "data/alignment.h"
 #include "data/types.h"
 #include "definitions.h"
-#include "sentence_ranges.h"
+#include "annotation.h"
 #include "translator/beam_search.h"
 
 #include <cassert>
diff --git a/src/translator/text_processor.cpp b/src/translator/text_processor.cpp
index 8d7f25c..fb66901 100644
--- a/src/translator/text_processor.cpp
+++ b/src/translator/text_processor.cpp
@@ -1,7 +1,7 @@
 #include "text_processor.h"
 #include "data/types.h"
 #include "definitions.h"
-#include "sentence_ranges.h"
+#include "annotation.h"
 
 #include "common/options.h"
 #include "data/vocab.h"
diff --git a/src/translator/text_processor.h b/src/translator/text_processor.h
index ed3c773..698e36e 100644
--- a/src/translator/text_processor.h
+++ b/src/translator/text_processor.h
@@ -4,7 +4,7 @@
 #include "data/types.h"
 #include "data/vocab.h"
 #include "definitions.h"
-#include "sentence_ranges.h"
+#include "annotation.h"
 
 #include "sentence_splitter.h"