diff --git a/src/editor/model.js b/src/editor/model.js
index 34a796f733..a121c67b48 100644
--- a/src/editor/model.js
+++ b/src/editor/model.js
@@ -401,8 +401,8 @@ export default class EditorModel {
         return new Range(this, positionA, positionB);
     }
 
-    //mostly internal, called from Range.replace
-    replaceRange(startPosition, endPosition, parts) {
+    // called from Range.replace
+    _replaceRange(startPosition, endPosition, parts) {
         // convert end position to offset, so it is independent of how the document is split into parts
         // which we'll change when splitting up at the start position
         const endOffset = endPosition.asOffset(this);
diff --git a/src/editor/range.js b/src/editor/range.js
index 0739cd7842..822c3b13a7 100644
--- a/src/editor/range.js
+++ b/src/editor/range.js
@@ -58,7 +58,7 @@ export default class Range {
         this._start.iteratePartsBetween(this._end, this._model, (part, startIdx, endIdx) => {
             oldLength += endIdx - startIdx;
         });
-        this._model.replaceRange(this._start, this._end, parts);
+        this._model._replaceRange(this._start, this._end, parts);
         return newLength - oldLength;
     }