diff --git a/include/decl.h b/include/decl.h
index 87ed80edd..0ce8f2cd0 100644
--- a/include/decl.h
+++ b/include/decl.h
@@ -700,6 +700,8 @@ struct role_filter {
 #define WIZKIT_MAX 128
 #define CVT_BUF_SIZE 64
 
+#define LUA_VER_BUFSIZ 20
+
 struct instance_globals {
 
     /* apply.c */
@@ -1253,6 +1255,9 @@ struct instance_globals {
     int  poly_zapped;
     boolean obj_zapped;
 
+    /* new stuff */
+    char lua_ver[LUA_VER_BUFSIZ];
+
     unsigned long magic; /* validate that structure layout is preserved */
 };
 
diff --git a/src/decl.c b/src/decl.c
index d5ba98d92..28c3e1c75 100644
--- a/src/decl.c
+++ b/src/decl.c
@@ -691,6 +691,9 @@ const struct instance_globals g_init = {
     UNDEFINED_VALUE, /* poly_zap */
     UNDEFINED_VALUE,  /* obj_zapped */
 
+    /* new */
+    DUMMY,   /* lua_ver[LUA_VER_BUFSIZ] */
+
     IVMAGIC  /* used to validate that structure layout has been preserved */
 };