diff --git a/stdlib/div.c b/stdlib/div.c
index e6ced47..c063491 100644
--- a/stdlib/div.c
+++ b/stdlib/div.c
@@ -1,7 +1,7 @@
 #include <stdlib.h>
 
-div_t div(int x, int y) {
-  div_t ret_val;
+struct div_t div(int x, int y) {
+  struct div_t ret_val;
   ret_val.quot = x / y;
   ret_val.rem  = x % y;
   return ret_val;
diff --git a/stdlib/ldiv.c b/stdlib/ldiv.c
index 2f76cdb..0c44b82 100644
--- a/stdlib/ldiv.c
+++ b/stdlib/ldiv.c
@@ -1,7 +1,7 @@
 #include <stdlib.h>
 
-ldiv_t ldiv(long int x, long int y) {
-  ldiv_t ret_val;
+struct ldiv_t ldiv(long int x, long int y) {
+  struct ldiv_t ret_val;
   ret_val.quot = x / y;
   ret_val.rem  = x % y;
   return ret_val;
diff --git a/stdlib/lldiv.c b/stdlib/lldiv.c
index 77c9958..d945d0a 100644
--- a/stdlib/lldiv.c
+++ b/stdlib/lldiv.c
@@ -1,7 +1,7 @@
 #include <stdlib.h>
 
-lldiv_t lldiv(long long int x, long long int y) {
-  lldiv_t ret_val;
+struct lldiv_t lldiv(long long int x, long long int y) {
+  struct lldiv_t ret_val;
   ret_val.quot = x / y;
   ret_val.rem  = x % y;
   return ret_val;