diff --git a/src/addons/mod/survey/components/index/addon-mod-survey-index.html b/src/addons/mod/survey/components/index/addon-mod-survey-index.html
index c3f2ea353..4278d0b91 100644
--- a/src/addons/mod/survey/components/index/addon-mod-survey-index.html
+++ b/src/addons/mod/survey/components/index/addon-mod-survey-index.html
@@ -78,38 +78,41 @@
                 </ng-container>
 
                 <!-- Subquestion -->
-                <ion-radio-group [(ngModel)]="answers[question.name]" [required]="question.required" [name]="question.name">
-                    <ion-row *ngIf="question.parent !== 0" class="ion-align-items-center ion-padding-horizontal" [class.even]="isEven">
+                <ng-container *ngIf="question.parent !== 0">
+                    <ion-radio-group [(ngModel)]="answers[question.name]" [required]="question.required" [name]="question.name">
+                        <ion-row *ngIf="question.parent !== 0" class="ion-align-items-center ion-padding-horizontal"
+                            [class.even]="isEven">
 
-                        <ion-col size="7">
-                            <ion-label id="addon-mod_survey-{{question.id}}">
-                                <span [core-mark-required]="question.required">
-                                    <strong>{{question.num}}.</strong> {{ question.text }}
-                                </span>
-                            </ion-label>
-                        </ion-col>
+                            <ion-col size="7">
+                                <ion-label id="addon-mod_survey-{{question.id}}">
+                                    <span [core-mark-required]="question.required">
+                                        <strong>{{question.num}}.</strong> {{ question.text }}
+                                    </span>
+                                </ion-label>
+                            </ion-col>
 
-                        <!-- Tablet view: radio buttons -->
-                        <ion-col class="ion-hide-md-down ion-text-center" size="1"
-                            *ngFor="let option of question.optionsArray; let value=index;"
-                            >
-                            <!-- Empty slot to avoid errors on migration tslint checks -->
-                            <ion-radio [value]="value + 1" [attr.aria-label]="question.num + '. '+question.text + ': ' + option">
-                            </ion-radio>
-                        </ion-col>
-                        <ion-col class="ion-hide-md-up" size="5">
-                            <ion-select class="ion-padding" [(ngModel)]="answers[question.name]" [required]="question.required"
-                                [attr.aria-labelledby]="'addon-mod_survey-'+question.id" interface="action-sheet"
-                                [name]="question.name">
-                                <ion-select-option value="-1" selected disabled>{{ 'core.choose' | translate }}</ion-select-option>
-                                <ion-select-option *ngFor="let option of question.optionsArray; let value=index;"
-                                    [value]="value +1">
-                                    {{option}}
-                                </ion-select-option>
-                            </ion-select>
-                        </ion-col>
-                    </ion-row>
-                </ion-radio-group>
+                            <!-- Tablet view: radio buttons -->
+                            <ion-col class="ion-hide-md-down ion-text-center" size="1"
+                                *ngFor="let option of question.optionsArray; let value=index;"
+                                >
+                                <!-- Empty slot to avoid errors on migration tslint checks -->
+                                <ion-radio [value]="value + 1" [attr.aria-label]="question.num + '. '+question.text + ': ' + option">
+                                </ion-radio>
+                            </ion-col>
+                            <ion-col class="ion-hide-md-up" size="5">
+                                <ion-select class="ion-padding" [(ngModel)]="answers[question.name]" [required]="question.required"
+                                    [attr.aria-labelledby]="'addon-mod_survey-'+question.id" interface="action-sheet"
+                                    [name]="question.name">
+                                    <ion-select-option value="-1" selected disabled>{{ 'core.choose' | translate }}</ion-select-option>
+                                    <ion-select-option *ngFor="let option of question.optionsArray; let value=index;"
+                                        [value]="value +1">
+                                        {{option}}
+                                    </ion-select-option>
+                                </ion-select>
+                            </ion-col>
+                        </ion-row>
+                    </ion-radio-group>
+                </ng-container>
 
                 <!-- Single question (don't belong to a category) -->
                 <ng-container *ngIf="(!question.multiArray || question.multiArray.length == 0) && question.parent === 0">