diff --git a/data-computer/v1/charger.cfg b/data-computer/v1/charger.cfg
index dea7887..7bff09a 100644
--- a/data-computer/v1/charger.cfg
+++ b/data-computer/v1/charger.cfg
@@ -10,13 +10,18 @@
 [singleton]
 
 # Step 1.1 : On évite de récupere un champ uri existant
-[singleton/identify]
-path = fix(`PID${Date.now()}`)
+[singleton/env]
+path = pid
+value = fix(`PID${Date.now()}`)
 
-# Step 1.2: On garde en mémoire l'identifiant généré
+# Step 1.2 : On génére un identifiant unique
+[singleton/identify]
+path = env('pid')
+
+# Step 1.3: On garde en mémoire l'identifiant généré (en le simplifiant)
 [singleton/env]
 path = identifier
-value = get('uri').replace('uid:/', '')
+value = get(env('pid')).replace('uid:/', '')
 
 [metrics]
 bucket = charger
diff --git a/data-workflow/v1/charger.cfg b/data-workflow/v1/charger.cfg
index dea7887..7bff09a 100644
--- a/data-workflow/v1/charger.cfg
+++ b/data-workflow/v1/charger.cfg
@@ -10,13 +10,18 @@
 [singleton]
 
 # Step 1.1 : On évite de récupere un champ uri existant
-[singleton/identify]
-path = fix(`PID${Date.now()}`)
+[singleton/env]
+path = pid
+value = fix(`PID${Date.now()}`)
 
-# Step 1.2: On garde en mémoire l'identifiant généré
+# Step 1.2 : On génére un identifiant unique
+[singleton/identify]
+path = env('pid')
+
+# Step 1.3: On garde en mémoire l'identifiant généré (en le simplifiant)
 [singleton/env]
 path = identifier
-value = get('uri').replace('uid:/', '')
+value = get(env('pid')).replace('uid:/', '')
 
 [metrics]
 bucket = charger