diff --git a/test/generate-xml.sh b/test/generate-xml.sh
index 84e52bd..6a3231f 100755
--- a/test/generate-xml.sh
+++ b/test/generate-xml.sh
@@ -13,27 +13,36 @@
 #------------------------------------------------------------------------------
 
 # Check commandline parameter
-if [ $# -ne 2 ]; then
+if [ $# -ne 1 ]; then
+    echo "usage: $0 path_to_directory_with_xml_files"
+    echo "or"
     echo "usage: $0 path_to_directory_with_xml_files path_to_mbus_parse_hex_with_filename"
     exit 3
 fi
 
 directory="$1"
 
-# Check if mbus_parse_hex exists
-if [ ! -x $2 ]; then
-    echo "mbus_parse_hex not found"
-    exit 3
-fi
-
-mbus_parse_hex="$2"
-
 # # Check directory
 if [ ! -d "$directory" ]; then
     echo "$directory not found"
     exit 3
 fi
 
+# Default location is this one
+mbus_parse_hex="build/bin/mbus_parse_hex"
+
+# though can be overriten
+if [ $# -eq 2 ]; then
+    mbus_parse_hex="$2"
+fi
+
+# Check if mbus_parse_hex exists
+if [ ! -x $mbus_parse_hex ]; then
+    echo "mbus_parse_hex not found"
+    echo "path to mbus_parse_hex: $mbus_parse_hex"
+    exit 3
+fi
+
 for hexfile in "$directory"/*.hex;  do
     if [ ! -f "$hexfile" ]; then
         continue