diff --git a/ext/spc/gstspc.c b/ext/spc/gstspc.c
index b6766d7b60..584e225267 100644
--- a/ext/spc/gstspc.c
+++ b/ext/spc/gstspc.c
@@ -489,6 +489,7 @@ spc_setup (GstSpcDec * spc)
 
 
   if (OSPC_Init (map.data, map.size) != 0) {
+    gst_buffer_unmap (spc->buf, &map);
     return FALSE;
   }
   gst_buffer_unmap (spc->buf, &map);