diff --git a/config.html b/config.html
index 7052d47..b5d5411 100644
--- a/config.html
+++ b/config.html
@@ -34,15 +34,15 @@
 		</tr>
 	</thead>
 	<tbody>
-		{{#foreach from=$config.input_nature}}
+		{{#foreach from=$config.input_nature key=key}}
 			<tr>
 				<td>{{$label}}</td>
 				<td>{{$type}}</td>
 				<td class="actions">
 					{{if ! $locked_inputs|has:$label}}
-						{{:linkbutton label="Supprimer" shape="delete" href="config/supprimer_type_mouvement.html?dir=input&mvt=%s"|args:$label target="_dialog"}}
+						{{:linkbutton label="Supprimer" shape="delete" href="config/supprimer_type_mouvement.html?dir=input&op_key=%s"|args:$key target="_dialog"}}
 					{{/if}}
-						{{:linkbutton label="Modifier" shape="edit" href="config/modifier_type_mouvement.html?dir=input&mvt=%s"|args:$label target="_dialog"}}
+						{{:linkbutton label="Modifier" shape="edit" href="config/modifier_type_mouvement.html?dir=input&op_key=%s"|args:$key target="_dialog"}}
 				</td>
 			</tr>
 		{{/foreach}}
@@ -59,15 +59,15 @@
 		</tr>
 	</thead>
 	<tbody>
-		{{#foreach from=$config.output_nature}}
+		{{#foreach from=$config.output_nature key=key}}
 			<tr>
 				<td>{{$label}}</td>
 				<td>{{$type}}</td>
 				<td class="actions">
 					{{if ! $locked_outputs|has:$label}}
-						{{:linkbutton label="Supprimer" shape="delete" href="config/supprimer_type_mouvement.html?dir=output&mvt=%s"|args:$label target="_dialog"}}
+						{{:linkbutton label="Supprimer" shape="delete" href="config/supprimer_type_mouvement.html?dir=output&op_key=%s"|args:$key target="_dialog"}}
 					{{/if}}
-						{{:linkbutton label="Modifier" shape="edit" href="config/modifier_type_mouvement.html?dir=output&mvt=%s"|args:$label target="_dialog"}}
+						{{:linkbutton label="Modifier" shape="edit" href="config/modifier_type_mouvement.html?dir=output&op_key=%s"|args:$key target="_dialog"}}
 				</td>
 			</tr>
 		{{/foreach}}
diff --git a/config/modifier_type_mouvement.html b/config/modifier_type_mouvement.html
index 40749ee..b83032d 100644
--- a/config/modifier_type_mouvement.html
+++ b/config/modifier_type_mouvement.html
@@ -3,7 +3,7 @@
 {{*
 	paramètres :
 	- dir : input ou output
-	- mvt : libellé du type de mouvement à modifier
+	- op_key : clé du type de mouvement dont on veut modifier le libellé
 *}}
 
 {{* barre de navigation *}}
@@ -14,32 +14,38 @@
 {{* lecture config (défaut ou enregistrée) *}}
 {{:include file="../_get_config.html" keep="config"}}
 
-{{*:debug config.input_nature=$config.input_nature config.input_nature=$config.input_nature*}}
-{{*:debug mvt=$_GET.mvt*}}
 {{#form on="save"}}
-	{{#foreach from=$config.input_nature key="label" item="type"}}
-		{{:debug key=$label item=$type}}
-		{{if $_GET.dir == 'input'
-			&& $label|trim|tolower == $_GET.mvt|trim|tolower}}
-			{{:assign var="input_nature.label" value=$_POST.name|trim|tolower|ucfirst}}
-		{{else}
+	{{:assign input_nature=null}}
+	{{#foreach from=$config.input_nature key=key}}
+		{{:assign var="input_nature.key" value=$key}}
+		{{if $_GET.dir == 'input'}}
+			{{if $key == $_GET.op_key}}
+				{{:assign var="input_nature.label" value=$_POST.name|trim|tolower|ucfirst}}
+			{{else}}
+				{{:assign var="input_nature.label" value=$label}}
+			{{/if}}
+		{{else}}
 			{{:assign var="input_nature.label" value=$label}}
 		{{/if}}
 		{{:assign var="input_nature.type" value=$type}}
 		{{:assign var="input_natures." from=input_nature}}
 	{{/foreach}}
 
-	{{#foreach from=$config.output_nature key="label" item="type"}}
-		{{if $_GET.dir == 'output' && $label|trim|tolower == $_GET.mvt|trim|tolower}}
-			{{:assign var="output_nature.label" value=$_POST.name|trim|tolower|ucfirst}}
+	{{#foreach from=$config.output_nature key=key}}
+		{{:assign var="output_nature.key" value=$key}}
+		{{if $_GET.dir == 'output'}}
+			{{if $key == $_GET.op_key}}
+				{{:assign var="output_nature.label" value=$_POST.name|trim|tolower|ucfirst}}
+			{{else}}
+			{{:assign var="output_nature.label" value=$label}}
+			{{/if}}
 		{{else}}
 			{{:assign var="output_nature.label" value=$label}}
 		{{/if}}
 		{{:assign var="output_nature.type" value=$type}}
 		{{:assign var="output_natures." from=output_nature}}
 	{{/foreach}}
-{{:debug input_natures=$input_natures output_natures=$output_natures}}
-{{*
+
 	{{:save
 		key="config"
 		validate_schema="../config.schema.json"
@@ -47,17 +53,16 @@
 		output_nature=$output_natures
 	}}
 	{{:redirect to="./config.html?ok=1"}}
-*}}
 {{/form}}
 
 {{:admin_header title="Gestion des matériels" current="module_equipment"}}
 {{:form_errors}}
-
+{{:assign var="default_label" from="config.%s_nature.%s.label"|args:$_GET.dir:$_GET.op_key}}
 <form method="post" action="" data-focus="1">
 	<fieldset>
 		<legend>Modifier le libellé</legend>
 		<dl>
-		{{:input type="text" name="name" label="Libellé" default=$_GET.mvt required=true maxlength="100"}}
+		{{:input type="text" name="name" label="Libellé" default=$default_label required=true maxlength="100"}}
 		</dl>
 		<p class="submit">
 			{{:button type="submit" name="save" label="Enregistrer" shape="right" class="main"}}
diff --git a/config/supprimer_type_mouvement.html b/config/supprimer_type_mouvement.html
index 0f55947..ce46f28 100644
--- a/config/supprimer_type_mouvement.html
+++ b/config/supprimer_type_mouvement.html
@@ -3,7 +3,7 @@
 {{*
 	paramètres :
 	- dir : input ou output
-	- mvt : libellé du type de mouvement à supprimer
+	- op_key : clé du type de mouvement à supprimer
 *}}
 
 {{* barre de navigation *}}
@@ -16,24 +16,20 @@
 
 {{#form on="delete"}}
 	{{#foreach from=$config.input_nature key=key}}
-		{{if $_GET.dir == 'input' && $label|trim|tolower != $_GET.mvt|trim|tolower ||
-			$_GET.dir == 'output'
-		}}
-		{{:assign var="input_nature.key" value=$key}}
-		{{:assign var="input_nature.label" value=$label}}
-		{{:assign var="input_nature.type" value=$type}}
-		{{:assign var="input_natures." from=input_nature}}
+		{{if $_GET.dir == 'input' && $key != $_GET.op_key || $_GET.dir == 'output'}}
+			{{:assign var="input_nature.key" value=$key}}
+			{{:assign var="input_nature.label" value=$label}}
+			{{:assign var="input_nature.type" value=$type}}
+			{{:assign var="input_natures." from=input_nature}}
 		{{/if}}
 	{{/foreach}}
 
 	{{#foreach from=$config.output_nature key=key}}
-		{{if $_GET.dir == 'output' && $label|trim|tolower != $_GET.mvt|trim|tolower ||
-			$_GET.dir == 'input'
-		}}
-		{{:assign var="output_nature.key" value=$key}}
-		{{:assign var="output_nature.label" value=$label}}
-		{{:assign var="output_nature.type" value=$type}}
-		{{:assign var="output_natures." from=output_nature}}
+		{{if $_GET.dir == 'output' && $key != $_GET.op_key || $_GET.dir == 'input'}}
+			{{:assign var="output_nature.key" value=$key}}
+			{{:assign var="output_nature.label" value=$label}}
+			{{:assign var="output_nature.type" value=$type}}
+			{{:assign var="output_natures." from=output_nature}}
 		{{/if}}
 	{{/foreach}}