diff --git a/edit/codemirror-editing-hooks.js b/edit/codemirror-editing-hooks.js
index 5f2d16c0..d8af16d0 100644
--- a/edit/codemirror-editing-hooks.js
+++ b/edit/codemirror-editing-hooks.js
@@ -156,11 +156,11 @@ onDOMscriptReady('/codemirror.js').then(() => {
   }
 
   function nextEditor(cm) {
-    nextPrevEditor(cm, 1);
+    return nextPrevEditor(cm, 1);
   }
 
   function prevEditor(cm) {
-    nextPrevEditor(cm, -1);
+    return nextPrevEditor(cm, -1);
   }
 
   function nextPrevEditor(cm, direction) {
diff --git a/edit/sections.js b/edit/sections.js
index 93d5b956..15be1684 100644
--- a/edit/sections.js
+++ b/edit/sections.js
@@ -331,7 +331,7 @@ function nextPrevEditorOnKeydown(cm, event) {
       }
       event.preventDefault();
       event.stopPropagation();
-      cm = CodeMirror.commands.prevEditor.call(cm);
+      cm = CodeMirror.commands.prevEditor(cm);
       cm.setCursor(cm.doc.size - 1, key === 37 ? 1e20 : ch);
       break;
     case 39:
@@ -347,7 +347,7 @@ function nextPrevEditorOnKeydown(cm, event) {
       }
       event.preventDefault();
       event.stopPropagation();
-      cm = CodeMirror.commands.nextEditor.call(cm);
+      cm = CodeMirror.commands.nextEditor(cm);
       cm.setCursor(0, 0);
       break;
   }