diff --git a/loader/preloader.c b/loader/preloader.c
index 0034e9a..eef0b72 100644
--- a/loader/preloader.c
+++ b/loader/preloader.c
@@ -178,7 +178,7 @@
     unsigned int  read_exec_only : 1;
     unsigned int  limit_in_pages : 1;
     unsigned int  seg_not_present : 1;
-    unsigned int  useable : 1;
+    unsigned int  usable : 1;
     unsigned int  garbage : 25;
 } thread_ldt = { -1, (unsigned long)thread_data, 0xfffff, 1, 0, 0, 1, 0, 1, 0 };