1 files changed, 1 insertions, 0 deletions
diff --git a/bat_tray.c b/bat_tray.c
index 3d01b85..a848278 100644
--- a/bat_tray.c
+++ b/bat_tray.c
@@ -144,6 +144,7 @@ static void update_tooltip_cache()
 			break;
 	}
 	strncpy(tooltip_text, msg, sizeof(tooltip_text));
+	tooltip_text[sizeof(tooltip_text)-1] = '\0';
 }