diff --git a/include/tdep-x86/libunwind_i.h b/include/tdep-x86/libunwind_i.h
index fb67f451..740aef74 100644
--- a/include/tdep-x86/libunwind_i.h
+++ b/include/tdep-x86/libunwind_i.h
@@ -46,6 +46,7 @@ struct unw_addr_space
 #endif
     unw_word_t dyn_generation;		/* see dyn-common.h */
     unw_word_t dyn_info_list_addr;	/* (cached) dyn_info_list_addr */
+    struct dwarf_rs_cache global_cache;
    };
 
 struct cursor