diff --git a/yarrow256.c b/yarrow256.c
index 3be5b29a99aff52044cb0e635e9c5db7a16b5e27..0db7818405ded8f16081489b1f70d161955ed931 100644
--- a/yarrow256.c
+++ b/yarrow256.c
@@ -34,9 +34,6 @@
  * data. */
 #define YARROW_MULTIPLIER 4
 
-/* Generator gate threshold */
-#define YARROW_GATE_THRESHOLD 10
-
 /* Entropy threshold for reseeding from the fast pool */
 #define YARROW_FAST_THRESHOLD 100