diff --git a/apps/plugins/databox/edittoken.h b/apps/plugins/databox/edittoken.h
index 2fcb874995..c1a33355a8 100644
--- a/apps/plugins/databox/edittoken.h
+++ b/apps/plugins/databox/edittoken.h
@@ -87,7 +87,7 @@
 #define SPELLING_LENGTH 100
 
 struct token {
-    char kind;
+    signed char kind;
     char spelling[SPELLING_LENGTH + 3];
     long intvalue;
 };