diff --git a/src/lib/ubix/startup.c b/src/lib/ubix/startup.c
index da23166..aab6b89 100755
--- a/src/lib/ubix/startup.c
+++ b/src/lib/ubix/startup.c
@@ -22,6 +22,7 @@
 **************************************************************************************/
 
 #include <stdio.h>
+#include <stdlib.h>
 
 extern int main();
 
@@ -31,4 +32,4 @@
   argv = &args;
   //argc = * (int *) (argv);  
   exit(main(argc,argv));
-  }
\ No newline at end of file
+  }