diff --git a/libpsx/include/stdlib.h b/libpsx/include/stdlib.h
index 661495a..e48e551 100644
--- a/libpsx/include/stdlib.h
+++ b/libpsx/include/stdlib.h
@@ -15,7 +15,6 @@ extern "C"
 #endif
 
 typedef unsigned int size_t;
-typedef signed int ssize_t;
 
 /* Conversion functions */