--- a/AppRun.c
+++ b/AppRun.c
@@ -44,6 +44,8 @@
 
 #define LINE_SIZE 255
 
+char *checkrt(char *usr_in_appdir);
+
 int filter(const struct dirent *dir) {
     char *p = (char*) &dir->d_name;
     p = strrchr(p, '.');
@@ -156,6 +158,7 @@
     char *old_env;
     const int LENGTH = 2047;
     char new_env[8][LENGTH+1];
+    char *optional = checkrt(usr_in_appdir);
 
     /* https://docs.python.org/2/using/cmdline.html#envvar-PYTHONHOME */
     snprintf(new_env[0], LENGTH, "PYTHONHOME=%s/usr/", appdir);
@@ -164,7 +167,7 @@
     snprintf(new_env[1], LENGTH, "PATH=%s/usr/bin/:%s/usr/sbin/:%s/usr/games/:%s/bin/:%s/sbin/:%s", appdir, appdir, appdir, appdir, appdir, old_env);
 
     old_env = getenv("LD_LIBRARY_PATH") ?: "";
-    snprintf(new_env[2], LENGTH, "LD_LIBRARY_PATH=%s/usr/lib/:%s/usr/lib/i386-linux-gnu/:%s/usr/lib/x86_64-linux-gnu/:%s/usr/lib32/:%s/usr/lib64/:%s/lib/:%s/lib/i386-linux-gnu/:%s/lib/x86_64-linux-gnu/:%s/lib32/:%s/lib64/:%s", appdir, appdir, appdir, appdir, appdir, appdir, appdir, appdir, appdir, appdir, old_env);
+    snprintf(new_env[2], LENGTH, "LD_LIBRARY_PATH=%s%s/usr/lib/:%s/usr/lib/i386-linux-gnu/:%s/usr/lib/x86_64-linux-gnu/:%s/usr/lib32/:%s/usr/lib64/:%s/lib/:%s/lib/i386-linux-gnu/:%s/lib/x86_64-linux-gnu/:%s/lib32/:%s/lib64/:%s", optional, appdir, appdir, appdir, appdir, appdir, appdir, appdir, appdir, appdir, appdir, old_env);
 
     old_env = getenv("PYTHONPATH") ?: "";
     snprintf(new_env[3], LENGTH, "PYTHONPATH=%s/usr/share/pyshared/:%s", appdir, old_env);