diff --git a/C/grow.c b/C/grow.c
index 1e5ff8059..6833ba493 100755
--- a/C/grow.c
+++ b/C/grow.c
@@ -28,7 +28,7 @@
 #if HAVE_STRING_H
 #include <string.h>
 #endif
-#if THREADS
+#if THREADS && !defined(TABLING)
 #include <opt.mavar.h>
 #endif