diff --git a/bin/address-to-area.mjs b/bin/address-to-area.mjs
index 2a5b6cf..4b60cf7 100755
--- a/bin/address-to-area.mjs
+++ b/bin/address-to-area.mjs
@@ -3,13 +3,14 @@
 // Renvoyer une aire géographique pour une adresse
 
 // Usage:
-// node ./bin/address-to-area.mjs < data/addresses-40-cnrs-rnsr-big-classes-train.txt
+// node ./bin/address-to-area.mjs
 
 import { fs } from "zx";
-
+import { getParam } from "../libs/params.mjs";
 import { getArea, getMapping, getSpacedMapping } from "../libs/geo.mjs";
 
-const [, , inputFilePath = "data/addresses-40-cnrs-rnsr-big-classes-train.txt"] = process.argv;
+/** @type {string} */
+const inputFilePath = await getParam(["prepare", "input"]);
 console.error({ inputFilePath })
 
 const mapping = await getMapping();
diff --git a/dvc.lock b/dvc.lock
index 2bed06a..a247e23 100644
--- a/dvc.lock
+++ b/dvc.lock
@@ -5,8 +5,8 @@
       > data/area-address.tsv
     deps:
     - path: bin/address-to-area.mjs
-      md5: e2cbb891d128b88e817dcdb83464debb
-      size: 962
+      md5: 92569f4ef93c42d6659b43c7a93abf1d
+      size: 1093
     - path: data/addresses-40-cnrs-rnsr-big-classes-train.txt
       md5: 612c9731294d230f5fd4ed8c10d67468
       size: 3694626
diff --git a/dvc.yaml b/dvc.yaml
index 1ef7a24..be1048e 100644
--- a/dvc.yaml
+++ b/dvc.yaml
@@ -1,10 +1,12 @@
 stages:
   prepare:
-    cmd: node bin/address-to-area.mjs data/addresses-40-cnrs-rnsr-big-classes-train.txt > data/area-address.tsv
+    cmd: node bin/address-to-area.mjs > data/area-address.tsv
     deps:
     - data/addresses-40-cnrs-rnsr-big-classes-train.txt
     - data/netscity-ville-aire-uniq.tsv
     - bin/address-to-area.mjs
     - libs/geo.mjs
+    params:
+    - prepare.input
     outs:
     - data/area-address.tsv
diff --git a/params.yaml b/params.yaml
new file mode 100644
index 0000000..2445ce4
--- /dev/null
+++ b/params.yaml
@@ -0,0 +1,2 @@
+prepare:
+    input: data/addresses-40-cnrs-rnsr-big-classes-train.txt
\ No newline at end of file