diff --git a/libs/wine/ldt.c b/libs/wine/ldt.c
index 92231ea617f..f7cb4007c11 100644
--- a/libs/wine/ldt.c
+++ b/libs/wine/ldt.c
@@ -50,7 +50,8 @@ struct modify_ldt_s
     unsigned int  read_exec_only : 1;
     unsigned int  limit_in_pages : 1;
     unsigned int  seg_not_present : 1;
-    unsigned int  useable:1;
+    unsigned int  useable : 1;
+    unsigned int  garbage : 25;
 };
 
 static inline void fill_modify_ldt_struct( struct modify_ldt_s *ptr, const LDT_ENTRY *entry )
@@ -63,6 +64,7 @@ static inline void fill_modify_ldt_struct( struct modify_ldt_s *ptr, const LDT_E
     ptr->limit_in_pages  = entry->HighWord.Bits.Granularity;
     ptr->seg_not_present = !entry->HighWord.Bits.Pres;
     ptr->useable         = entry->HighWord.Bits.Sys;
+    ptr->garbage         = 0;
 }
 
 static inline int modify_ldt( int func, struct modify_ldt_s *ptr, unsigned long count )