diff --git a/asservissement/asservissement.ino b/asservissement/asservissement.ino
index 834e11e..0bc74e7 100644
--- a/asservissement/asservissement.ino
+++ b/asservissement/asservissement.ino
@@ -536,8 +536,8 @@ void decryptIncom(){
   bool neg;
   i = 0;
   // stop
-  if (streamChar[0]==' ') {
-    cmd = streamChar[0];
+  if (streamChar[0]=='W') {
+    cmd = ' ';
   }
 
   // recallage