diff --git a/lib/ProgramCall.js b/lib/ProgramCall.js
index 2450f1d..2107417 100644
--- a/lib/ProgramCall.js
+++ b/lib/ProgramCall.js
@@ -28,6 +28,7 @@ class ProgramCall {
    * Using ``off`` or ``fast`` continues executing the script. The Difference is that ``fast``
    * will log a brief error report and ``off`` will not.
    * @property {string} [func] - The target function of the service program.
+   * @property {string} [mode=opm|ile] - Determines the program call mode.
    */
 
   /**
@@ -40,8 +41,9 @@ class ProgramCall {
     this.xml = `<pgm name='${program}'`;
     if (options.lib) this.xml += ` lib='${options.lib}'`;
     if (options.func) this.xml += ` func='${options.func}'`;
+    if (options.mode) this.xml += ` mode='${options.mode}'`;
     this.xml += ` error='${options.error || 'fast'}'>`;
-  }
+  } 
 
   /**
    * @private