diff --git a/client/util.c b/client/util.c
index 36362f83b..654a87cc3 100644
--- a/client/util.c
+++ b/client/util.c
@@ -212,7 +212,6 @@ void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex
         sprintf(tmp, " ");
 
     // remove last space
-    --tmp;
     *tmp = '\0';
     return;
 }