diff --git a/ext/closedcaption/gstccconverter.c b/ext/closedcaption/gstccconverter.c
index 86bf9d8f2c..7ac46c0db8 100644
--- a/ext/closedcaption/gstccconverter.c
+++ b/ext/closedcaption/gstccconverter.c
@@ -569,7 +569,7 @@ convert_cea708_cdp_cea708_cc_data_internal (GstCCConverter * self,
   guint8 u8;
   guint8 flags;
   gint fps_n, fps_d;
-  guint len;
+  guint len = 0;
 
   memset (tc, 0, sizeof (*tc));