diff --git a/coach.php b/coach.php
index 59cbae8..940cd04 100644
--- a/coach.php
+++ b/coach.php
@@ -54,6 +54,8 @@ $text = (object)[
     'coacheditmode' => get_string("coacheditmode", 'local_treestudyplan'),
     'showoverview' => get_string("showoverview", 'local_treestudyplan'),
     'studyplan_noneselected' => get_string("studyplan_noneselected", 'local_treestudyplan'),
+    'selectstudent_btn' => get_string('selectstudent_btn', 'local_treestudyplan'),
+    'back' => get_string('back', 'local_treestudyplan'),
 ];
 
 print <<<END
@@ -67,14 +69,14 @@ print <<<END
         <div class="m-buttonbar" style="margin-bottom: 1em;">
             <template v-if="displayedstudyplan">
                 <a href='#' @click.prevent='closeStudyplan'
-                    ><i style='font-size: 150%;' class='fa fa-chevron-left'></i> <?php t('back');?></a>
+                    ><i style='font-size: 150%;' class='fa fa-chevron-left'></i> {$text->back}</a>
                 <span>{$text->studyplan_select}</span>&nbsp;
                 <s-studyplan-details
                     v-model="displayedstudyplan"
                     v-if="displayedstudyplan.description"
                 ></s-studyplan-details>
                 <div class="flex-grow-1"><!-- Spacer to align student selector right --></div>
-                <span><?php t('selectstudent_btn') ?></span>
+                <span>{ $text->selectstudent_btn}</span>
                 <s-prevnext-selector
                     :options="associatedstudents"
                     title="firstname"
diff --git a/edit-plan.php b/edit-plan.php
index 1e5c730..74dcea3 100644
--- a/edit-plan.php
+++ b/edit-plan.php
@@ -112,6 +112,7 @@ $text = (object)[
     'studyplan_select' => get_string("studyplan_select", 'local_treestudyplan'),
     'studyplan_noneselected' => get_string("studyplan_noneselected", 'local_treestudyplan'),
     'defaultaggregation' => get_config("local_treestudyplan", "aggregation_mode"),
+    'back' => get_string('back', 'local_treestudyplan'),
 ];
 
 print <<<END
@@ -142,7 +143,7 @@ print <<<END
         <h3 v-else>{$contextname}</h3>
         <div class="m-buttonbar" style="margin-bottom: 1em;">
             <a href='#' v-if='activestudyplan' @click.prevent='closeStudyplan'
-                ><i style='font-size: 150%;' class='fa fa-chevron-left'></i> <?php t('back');?></a>
+                ><i style='font-size: 150%;' class='fa fa-chevron-left'></i> {$text->back}</a>
             <span v-if='activestudyplan'>{$text->studyplan_select}</span>&nbsp;
             <b-form-select v-if='activestudyplan' lazy :text='dropdown_title' :value='activestudyplan.id' @change="selectStudyplan">
                 <b-form-select-option
diff --git a/view-plan.php b/view-plan.php
index ea9d5d5..d9087af 100644
--- a/view-plan.php
+++ b/view-plan.php
@@ -156,7 +156,7 @@ print <<<END
                 ></s-studyplan-details>
                 <div class="flex-grow-1"><!-- Spacer to align student selector right --></div>
                 <div>
-                    <span><?php t('selectstudent_btn') ?></span>
+                    <span>{$text->selectstudent_btn}</span>
                     <s-prevnext-selector
                         :options="associatedstudents"
                         title="firstname"