diff --git a/kolibri/core/assets/src/utils/contentNodeUtils.js b/kolibri/core/assets/src/utils/contentNodeUtils.js
deleted file mode 100644
index 30401626a7..0000000000
--- a/kolibri/core/assets/src/utils/contentNodeUtils.js
+++ /dev/null
@@ -1,19 +0,0 @@
-import { MasteryModelTypes } from 'kolibri.coreVue.vuex.constants';
-
-export function masteryModelValidator({ type, m, n }) {
-  let isValid = true;
-  const typeIsValid = Object.values(MasteryModelTypes).includes(type);
-  if (!typeIsValid) {
-    // eslint-disable-next-line no-console
-    console.error(`Invalid mastery model type: ${type}`);
-    isValid = false;
-  }
-  if (type === MasteryModelTypes.m_of_n) {
-    if (typeof n !== 'number' || typeof m !== 'number') {
-      // eslint-disable-next-line no-console
-      console.error(`Invalid value of m and/or n. m: ${m}, n: ${n}`);
-      isValid = false;
-    }
-  }
-  return isValid;
-}
diff --git a/kolibri/core/assets/src/views/ExamReport/utils.js b/kolibri/core/assets/src/views/ExamReport/utils.js
index 6948a38c76..658aeebe4a 100644
--- a/kolibri/core/assets/src/views/ExamReport/utils.js
+++ b/kolibri/core/assets/src/views/ExamReport/utils.js
@@ -1,6 +1,6 @@
 import has from 'lodash/has';
 import logger from 'kolibri.lib.logging';
-import { masteryModelValidator } from '../../utils/contentNodeUtils';
+import { masteryModelValidator } from 'kolibri-common/utils/contentNode';
 
 export const logging = logger.getLogger(__filename);
 
diff --git a/kolibri/core/assets/src/views/MasteryModel.vue b/kolibri/core/assets/src/views/MasteryModel.vue
index 3baa50f821..cd75dcf94c 100644
--- a/kolibri/core/assets/src/views/MasteryModel.vue
+++ b/kolibri/core/assets/src/views/MasteryModel.vue
@@ -8,7 +8,7 @@
 <script>
 
   import { MasteryModelTypes } from 'kolibri.coreVue.vuex.constants';
-  import { masteryModelValidator } from '../utils/contentNodeUtils';
+  import { masteryModelValidator } from 'kolibri-common/utils/contentNode';
 
   export default {
     name: 'MasteryModel',
diff --git a/packages/kolibri-common/utils/contentNode.js b/packages/kolibri-common/utils/contentNode.js
index 3612720457..49524ac21c 100644
--- a/packages/kolibri-common/utils/contentNode.js
+++ b/packages/kolibri-common/utils/contentNode.js
@@ -1,5 +1,6 @@
 import groupBy from 'lodash/groupBy';
 import sortBy from 'lodash/sortBy';
+import { MasteryModelTypes } from 'kolibri.coreVue.vuex.constants';
 import { getContentLangActive } from 'kolibri.utils.i18n';
 
 export function deduplicateResources(contentNodes) {
@@ -30,3 +31,21 @@ export function deduplicateResources(contentNodes) {
     return primaryNode;
   });
 }
+
+export function masteryModelValidator({ type, m, n }) {
+  let isValid = true;
+  const typeIsValid = Object.values(MasteryModelTypes).includes(type);
+  if (!typeIsValid) {
+    // eslint-disable-next-line no-console
+    console.error(`Invalid mastery model type: ${type}`);
+    isValid = false;
+  }
+  if (type === MasteryModelTypes.m_of_n) {
+    if (typeof n !== 'number' || typeof m !== 'number') {
+      // eslint-disable-next-line no-console
+      console.error(`Invalid value of m and/or n. m: ${m}, n: ${n}`);
+      isValid = false;
+    }
+  }
+  return isValid;
+}