diff --git a/library/include/stdlib.h b/library/include/stdlib.h
index b1d48a8..dc9a234 100644
--- a/library/include/stdlib.h
+++ b/library/include/stdlib.h
@@ -47,6 +47,10 @@
 #include <stddef.h>
 #endif /* _STDDEF_H */
 
+#ifndef _SYS_CLIB2_STDC_H
+#include <clib2_stdc.h>
+#endif /* _SYS_CLIB2_STDC_H */
+
 /****************************************************************************/
 
 #ifdef __cplusplus