diff --git a/src/libs/json/json.c b/src/libs/json/json.c
index 2ea6f03..4de4e10 100644
--- a/src/libs/json/json.c
+++ b/src/libs/json/json.c
@@ -41,7 +41,7 @@ BongoJsonJPath(BongoJsonNode *root, const char *path)
 
     if (! nextrule) {
         strncpy(rule, path, 49);
-        rulelen = 50;
+        rulelen = 49;
     } else {
         strncpy(rule, path, min(nextrule - path, 49));
         rulelen = nextrule - path;