diff --git a/examples/shell/active-wifi.sh b/examples/shell/active-wifi.sh
index 1c9466b7a..2ff541901 100755
--- a/examples/shell/active-wifi.sh
+++ b/examples/shell/active-wifi.sh
@@ -76,7 +76,7 @@ show_active_ssids()
         BSSID=`get_property $ACTIVE_AP $ACCESS_POINT_IFACE "HwAddress"`
         echo "Device '$INTERFACE' is connected to '$SSID' (BSSID=$BSSID)"
       else
-        echo "No active AP on device '$INTERFACE'"
+        echo "No active AP on device '$INTERFACE'" >&2
       fi
     fi
   done
diff --git a/examples/shell/disconnect-device.sh b/examples/shell/disconnect-device.sh
index 045d64d7f..e8af42fcc 100755
--- a/examples/shell/disconnect-device.sh
+++ b/examples/shell/disconnect-device.sh
@@ -61,7 +61,7 @@ disconnect_device ()
     fi
   done
 
-  echo "Device with interface '$1' not found."
+  echo "Device with interface '$1' not found." >&2
   return 1
 }
 
@@ -70,7 +70,7 @@ disconnect_device ()
 if [ ! -n "$1" ]; then
   echo "Usage: `basename $0` <interface name>"
   exit 2
-fi 
+fi
 
 # disconnect device
 disconnect_device $1