diff --git a/src/app/components/field-set/field-set.component.html b/src/app/components/field-set/field-set.component.html
index 3217d50f0ba485c834824abf92139f58b47292d8..e048b39153d6154fea40eec191fbefd36abab6e6 100644
--- a/src/app/components/field-set/field-set.component.html
+++ b/src/app/components/field-set/field-set.component.html
@@ -3,16 +3,16 @@
         {{ title }}
     </mat-card-title>
     <div *ngIf="showButtons" class="hyd-window-btns">
-        <button mat-icon-button (click)="onAddClick()">
+        <button type="button" mat-icon-button (click)="onAddClick()">
             <mat-icon>add_box</mat-icon>
         </button>
-        <button mat-icon-button [disabled]="! enableRemoveButton" (click)="onRemoveClick()">
+        <button type="button" mat-icon-button [disabled]="! enableRemoveButton" (click)="onRemoveClick()">
             <mat-icon>delete</mat-icon>
         </button>
-        <button mat-icon-button [disabled]="! enableUpButton" (click)="onMoveUpClick()">
+        <button type="button" mat-icon-button [disabled]="! enableUpButton" (click)="onMoveUpClick()">
             <mat-icon>arrow_upward</mat-icon>
         </button>
-        <button mat-icon-button [disabled]="! enableDownButton" (click)="onMoveDownClick()">
+        <button type="button" mat-icon-button [disabled]="! enableDownButton" (click)="onMoveDownClick()">
             <mat-icon>arrow_downward</mat-icon>
         </button>
     </div>
diff --git a/src/app/components/generic-calculator/calculator.component.html b/src/app/components/generic-calculator/calculator.component.html
index 4c2623ff5d94eb7fc43befc6dd660c8dc4efcafc..455dddadbbcae6d4faa78d4b322ba7fa76517c80 100644
--- a/src/app/components/generic-calculator/calculator.component.html
+++ b/src/app/components/generic-calculator/calculator.component.html
@@ -40,7 +40,7 @@
 
                     <mat-card-actions>
                         <!-- bouton calculer -->
-                        <button mat-raised-button color="accent" name="Calculer" (click)="doCompute()"[disabled]="isCalculateDisabled">
+                        <button type="submit" mat-raised-button color="accent" name="Calculer" (click)="doCompute()"[disabled]="isCalculateDisabled">
                             {{ uitextCalculer }}
                         </button>
                     </mat-card-actions>