diff --git a/panel-plugin/netload.c b/panel-plugin/netload.c
index 95811df..a5f55d9 100644
--- a/panel-plugin/netload.c
+++ b/panel-plugin/netload.c
@@ -238,11 +238,11 @@ static gboolean update_monitors(t_global_monitor *global)
         if (global->monitor->options.show_bars)
             gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(global->monitor->status[i]), temp);
 
-        format_byte_humanreadable( buffer[i], BUFSIZ, display[i], 2 );
-        format_byte_humanreadable( buffer_panel[i], BUFSIZ, display[i], 0 );
+        format_byte_humanreadable( buffer[i], BUFSIZ - 1, display[i], 2 );
+        format_byte_humanreadable( buffer_panel[i], BUFSIZ - 1, display[i], 0 );
     }
     
-    format_byte_humanreadable( buffer[TOT], BUFSIZ, (display[IN]+display[OUT]), 2 );
+    format_byte_humanreadable( buffer[TOT], BUFSIZ - 1, (display[IN]+display[OUT]), 2 );
     
     {
         char* ip = get_ip_address(&(global->monitor->data));