diff --git a/src/commands/groups.c b/src/commands/groups.c
index 1969edf..4aa7776 100644
--- a/src/commands/groups.c
+++ b/src/commands/groups.c
@@ -6,7 +6,7 @@
 
 COMMAND_EMPTY(groups) {
 
-    __uid_t uid = getuid();
+    uid_t uid = getuid();
     
     struct passwd* pw = getpwuid(uid);
     if(pw == NULL){
@@ -16,7 +16,7 @@ COMMAND_EMPTY(groups) {
     int ngroups = 0;
     getgrouplist(pw->pw_name, pw->pw_gid, NULL, &ngroups);
     
-    __gid_t groups[ngroups];
+    gid_t groups[ngroups];
     getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups);
     
     for (int i = 0; i < ngroups; i++){
diff --git a/src/commands/id.c b/src/commands/id.c
index ab974b1..f1790bc 100644
--- a/src/commands/id.c
+++ b/src/commands/id.c
@@ -6,8 +6,8 @@
 
 COMMAND_EMPTY(user_id) {
 
-    __uid_t uid = getuid();
-    __gid_t gid = getgid();
+    uid_t uid = getuid();
+    gid_t gid = getgid();
     
     struct passwd* pw = getpwuid(uid);
     if(pw == NULL){
@@ -17,7 +17,7 @@ COMMAND_EMPTY(user_id) {
     int ngroups = 0;
     getgrouplist(pw->pw_name, pw->pw_gid, NULL, &ngroups);
     
-    __gid_t groups[ngroups];
+    gid_t groups[ngroups];
     getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups);
    
     struct group* ugr = getgrgid(gid);
diff --git a/src/commands/ls.c b/src/commands/ls.c
index beebd19..bcc042c 100644
--- a/src/commands/ls.c
+++ b/src/commands/ls.c
@@ -58,8 +58,8 @@ static void list_file(struct dirent* file, struct Flags* flags, const char* dir_
 
     if (flags->more_info) {
 
-        __uid_t uid = getuid();
-        __gid_t gid = getgid();
+        uid_t uid = getuid();
+        gid_t gid = getgid();
 
         char buf[PATH_MAX];
         append_path(buf, dir_path, file);