diff --git a/src/core/ReactDOMSelection.js b/src/core/ReactDOMSelection.js
index bbee07f9b2..d5fa118103 100644
--- a/src/core/ReactDOMSelection.js
+++ b/src/core/ReactDOMSelection.js
@@ -137,7 +137,15 @@ function setModernOffsets(node, offsets) {
   var length = node[getTextContentAccessor()].length;
   var start = Math.min(offsets.start, length);
   var end = typeof offsets.end === 'undefined' ?
-    start : Math.min(offsets.end, length);
+            start : Math.min(offsets.end, length);
+
+  // IE 11 uses modern selection, but doesn't support the extend method.
+  // Flip backward selections, so we can set with a single range.
+  if (!selection.extend && start > end) {
+    var temp = end;
+    end = start;
+    start = temp;
+  }
 
   var startMarker = getNodeForCharacterOffset(node, start);
   var endMarker = getNodeForCharacterOffset(node, end);
@@ -146,8 +154,15 @@ function setModernOffsets(node, offsets) {
     var range = document.createRange();
     range.setStart(startMarker.node, startMarker.offset);
     selection.removeAllRanges();
-    selection.addRange(range);
-    selection.extend(endMarker.node, endMarker.offset);
+
+    if (start > end) {
+      selection.addRange(range);
+      selection.extend(endMarker.node, endMarker.offset);
+    } else {
+      range.setEnd(endMarker.node, endMarker.offset);
+      selection.addRange(range);
+    }
+
     range.detach();
   }
 }