diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index b27f6965e86..e60883c7149 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -5100,7 +5100,68 @@ class Form
 			print '</div>';
 		}
 
-		if (((! is_array($restrictlinksto)) || in_array('supplier_order',$restrictlinksto))
+		if ((in_array('fichinter',$restrictlinksto)) && ! empty($conf->ficheinter->enabled))
+		{
+			$linktoelem.=($linktoelem?' &nbsp; ':'').'<a href="#" id="linktoorder">' . $langs->trans('LinkedFichinter') . '</a>';
+
+			print '
+				<script type="text/javascript" language="javascript">
+				jQuery(document).ready(function() {
+					jQuery("#linktoorder").click(function() {
+						jQuery("#orderlist").toggle();
+						jQuery("#linktoorder").toggle();
+					});
+				});
+				</script>
+				';
+
+			print '<div id="orderlist"'.(empty($conf->global->MAIN_OPTIMIZEFORTEXTBROWSER)?' style="display:none"':'').'>';
+
+			$sql = "SELECT s.rowid as socid, s.nom as name, s.client, f.rowid, f.ref";
+			$sql .= " FROM " . MAIN_DB_PREFIX . "societe as s";
+			$sql .= ", " . MAIN_DB_PREFIX . "fichinter as f";
+			$sql .= ' WHERE f.fk_soc = s.rowid';
+
+			$resqlorderlist = $this->db->query($sql);
+			if ($resqlorderlist)
+			{
+				$num = $this->db->num_rows($resqlorderlist);
+				$i = 0;
+
+				print '<br><form action="" method="POST" name="LinkedFichinter">';
+				print '<table class="noborder">';
+				print '<tr class="liste_titre">';
+				print '<td class="nowrap"></td>';
+				print '<td align="center">' . $langs->trans("Ref") . '</td>';
+				print '<td align="left">' . $langs->trans("Company") . '</td>';
+				print '</tr>';
+				while ($i < $num)
+				{
+					$objp = $this->db->fetch_object($resqlorderlist);
+
+					$var = ! $var;
+					print '<tr ' . $bc [$var] . '>';
+					print '<td aling="left">';
+					print '<input type="radio" name="LinkedFichinter" value=' . $objp->rowid . '>';
+					print '<td align="center">' . $objp->ref . '</td>';
+					print '<td>' . $objp->name . '</td>';
+					print '</td>';
+					print '</tr>';
+
+					$i ++;
+				}
+				print '</table>';
+				print '<div class="center"><input type="submit" class="button" value="' . $langs->trans('ToLink') . '">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type="submit" class="button" name="cancel" value="' . $langs->trans('Cancel') . '"></div>';
+				print '</form>';
+				$this->db->free($resqlorderlist);
+			} else {
+				dol_print_error($this->db);
+			}
+
+			print '</div>';
+		}
+
+        if (((! is_array($restrictlinksto)) || in_array('supplier_order',$restrictlinksto))
 			&& ! empty($conf->fournisseur->enabled))
 		{
 			$linktoelem.=($linktoelem?' &nbsp; ':'').'<a href="#linktoorder" id="linktoorder">' . $langs->trans('LinkedOrder') . '</a>';
diff --git a/htdocs/expensereport/card.php b/htdocs/expensereport/card.php
index 5036fd617f0..ba860d17465 100644
--- a/htdocs/expensereport/card.php
+++ b/htdocs/expensereport/card.php
@@ -2086,7 +2086,28 @@ if($user->rights->expensereport->export && $object->fk_statut>0 && $action != 'e
 
 print '</div>';
 
+if ($action != 'create' && $action != 'edit' && ($id || $ref))
+{
+    $permissiondellink=$user->rights->facture->creer;	// Used by the include of actions_dellink.inc.php
+	include DOL_DOCUMENT_ROOT.'/core/actions_dellink.inc.php';		// Must be include, not include_once
 
+    // Link invoice to intervention
+    if (GETPOST('LinkedFichinter')) {
+        $object->fetch($id);
+        $object->fetch_thirdparty();
+        $result = $object->add_object_linked('fichinter', GETPOST('LinkedFichinter'));
+    }
+    // Linked object block
+    $somethingshown = $form->showLinkedObjectBlock($object);
+
+    // Show links to link elements
+    $linktoelements=array();
+    if($conf->global->EXPENSES_LINK_TO_INTERVENTION) $linktoelements[]='fichinter';
+    $linktoelem='';
+    $linktoelem = $form->showLinkToObjectBlock($object,$linktoelements);
+    if ($linktoelem) print '<br>'.$linktoelem;
+
+}
 llxFooter();
 
 $db->close();
diff --git a/htdocs/langs/en_US/compta.lang b/htdocs/langs/en_US/compta.lang
index 14cacf57022..964a7c30678 100644
--- a/htdocs/langs/en_US/compta.lang
+++ b/htdocs/langs/en_US/compta.lang
@@ -220,4 +220,5 @@ AddExtraReport=Extra reports
 OtherCountriesCustomersReport=Foreign customers report
 BasedOnTwoFirstLettersOfVATNumberBeingDifferentFromYourCompanyCountry=Based on the two first letters of the VAT number being different from your own company's country code
 SameCountryCustomersWithVAT=National customers report
-BasedOnTwoFirstLettersOfVATNumberBeingTheSameAsYourCompanyCountry=Based on the two first letters of the VAT number being the same as your own company's country code
\ No newline at end of file
+BasedOnTwoFirstLettersOfVATNumberBeingTheSameAsYourCompanyCountry=Based on the two first letters of the VAT number being the same as your own company's country code
+LinkedFichinter=Link to an intervention
diff --git a/htdocs/langs/fr_FR/compta.lang b/htdocs/langs/fr_FR/compta.lang
index dd7ca2fc4cc..96cc123c2c6 100644
--- a/htdocs/langs/fr_FR/compta.lang
+++ b/htdocs/langs/fr_FR/compta.lang
@@ -221,3 +221,4 @@ OtherCountriesCustomersReport=Rapport client étranger
 BasedOnTwoFirstLettersOfVATNumberBeingDifferentFromYourCompanyCountry=Basé sur les deux premières lettres du numéro de TVA étant différent du code de pays de votre propre entreprise
 SameCountryCustomersWithVAT=Rapport clients nationaux
 BasedOnTwoFirstLettersOfVATNumberBeingTheSameAsYourCompanyCountry=Basé sur les deux premières lettres du numéro de TVA étant les mêmes que le code pays de votre propre entreprise
+LinkedFichinter=Lier à une intervention