--- a/unix/vncserver/vncsession.c	2022-02-14 15:33:43.235664547 +0000
+++ b/unix/vncserver/vncsession.c	2022-02-14 17:09:00.586000641 +0000
@@ -413,7 +413,7 @@
 }
 
 static pid_t
-run_script(const char *username, const char *display, char **envp)
+run_script(const char *username, const char *display, const char *xsession, char **envp)
 {
     struct passwd *pwent;
     pid_t pid;
@@ -472,8 +472,14 @@
 
     child_argv[0] = CMAKE_INSTALL_FULL_LIBEXECDIR "/vncserver";
     child_argv[1] = display;
-    child_argv[2] = NULL;
-
+    if ( strlen(xsession) > 0 ){
+	    child_argv[2] = xsession;
+	    child_argv[3] = NULL;
+    }
+    else{
+	    child_argv[2] = NULL;
+    }
+    
     execvp(child_argv[0], (char*const*)child_argv);
 
     // execvp failed
@@ -488,16 +494,19 @@
     char pid_file[PATH_MAX];
     FILE *f;
 
-    const char *username, *display;
+    const char *username, *display, *xsession="";
 
-    if ((argc != 3) || (argv[2][0] != ':')) {
+    if ( ( (argc != 3) && (argc != 4) ) || (argv[2][0] != ':')) {
         fprintf(stderr, "Syntax:\n");
-        fprintf(stderr, "    %s <username> <display>\n", argv[0]);
+        fprintf(stderr, "    %s <username> <display> [<xsession-file>]\n", argv[0]);
         return EX_USAGE;
     }
 
     username = argv[1];
     display = argv[2];
+    if (argc == 4 ) {
+    	xsession = argv[3];
+    }
 
     if (geteuid() != 0) {
         fprintf(stderr, "This program needs to be run as root!\n");
@@ -546,8 +555,8 @@
     }
 
     setup_signals();
-
-    script = run_script(username, display, child_env);
+    
+    script = run_script(username, display, xsession, child_env);
     if (script == -1) {
         syslog(LOG_CRIT, "Failure starting vncserver script");
         stop_pam(pamh, pamret);