diff --git a/H/Yap.h b/H/Yap.h
index bd06fd5e7..76a25d2b7 100755
--- a/H/Yap.h
+++ b/H/Yap.h
@@ -60,7 +60,7 @@
 #endif
 #endif /* YAPOR */
 
-#if defined(YAPOR) || defined(THREADS) || defined(TABLING)
+#if defined(YAPOR) || defined(THREADS)
 #define MULTIPLE_STACKS 1
 #endif
 
diff --git a/packages/YapR b/packages/YapR
index 90a2cd308..a6646d0be 160000
--- a/packages/YapR
+++ b/packages/YapR
@@ -1 +1 @@
-Subproject commit 90a2cd3082694f77d9ac5568b0f9d57cb7c27af5
+Subproject commit a6646d0be1d1d63782e0c1395dd449183fdd8988