diff --git a/libs/paylib.py b/libs/paylib.py
index c135aa2..b3c7428 100644
--- a/libs/paylib.py
+++ b/libs/paylib.py
@@ -106,4 +106,6 @@ def sendTXDoc(signedDoc):
   except Exception as e:
     message = ast.literal_eval(str(e))["message"]
     sys.stderr.write("Echec de la transaction:\n" + message + "\n")
-    sys.exit(1)
\ No newline at end of file
+    sys.exit(1)
+
+    
\ No newline at end of file
diff --git a/pay.py b/pay.py
index 4da7fc8..449e12a 100755
--- a/pay.py
+++ b/pay.py
@@ -13,7 +13,7 @@ try:
   else:
     comment = ""
 except Exception as e:
-  print(str(e))
+  print("Please enter the recipient's public and the amount\n" + str(e))
   sys.exit(1)
 
 # Execute workflow