diff --git a/include/stdlib.h b/include/stdlib.h
index a8c9aeb..d7879fb 100755
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -28,20 +28,20 @@
 
 #define MB_CUR_MAX (size_t) 1
 
-typedef struct _f_div_t {
+struct div_t {
   int quot;
   int rem;
-} div_t;
+};
 
-typedef struct _f_ldiv_t {
+struct ldiv_t {
   long quot;
   long rem;
-} ldiv_t;
+};
 
-typedef struct _f_lldiv_t {
+struct lldiv_t {
   long long quot;
   long long rem;
-} lldiv_t;
+};
 
 __attribute__((__noreturn__))
 void abort(void);
@@ -49,9 +49,9 @@ void abort(void);
 void srand(unsigned int);
 int rand(void);
 
-div_t div(int, int);
-ldiv_t ldiv(long, long);
-lldiv_t lldiv(long long, long long);
+struct div_t div(int, int);
+struct ldiv_t ldiv(long, long);
+struct lldiv_t lldiv(long long, long long);
 
 int abs(int);
 long labs(long);