diff --git a/packages/PLStream/pl-yap.c b/packages/PLStream/pl-yap.c
index d3ce338b4..3d2b63be8 100755
--- a/packages/PLStream/pl-yap.c
+++ b/packages/PLStream/pl-yap.c
@@ -1124,6 +1124,7 @@ Yap_StreamPosition(IOSTREAM *st)
 IOSTREAM *
 Yap_Scurin(void)
 {
+  GET_LD
   return Scurin;
 }