1 files changed, 4 insertions, 0 deletions

diff --git a/firmware/include/ctype.h b/firmware/include/ctype.h
index b6d8a43492..c72a256e4b 100644
--- a/firmware/include/ctype.h
+++ b/firmware/include/ctype.h
@@ -36,7 +36,11 @@ int _EXFUN(_toupper, (int __c));
 #define _X      0100
 #define _B      0200
 
+#ifdef PLUGIN
+#define _ctype_ (rb->_ctype_)
+#else
 extern  char    _ctype_[];
+#endif
 
 #ifndef __cplusplus
 #define isalpha(c)      ((_ctype_+1)[(unsigned)(c)]&(_U|_L))