diff --git a/include/dalist/dalist_env.h b/include/dalist/dalist_env.h
index ee27f58..8fef0bf 100644
--- a/include/dalist/dalist_env.h
+++ b/include/dalist/dalist_env.h
@@ -5,6 +5,11 @@
 
 #include <psxtypes/psxtypes.h>
 
+#elif defined (_DALIST_FREESTANDING)
+
+#include <stdint.h>
+typedef  intptr_t ssize_t;
+
 #else
 
 #ifndef _XOPEN_SOURCE