diff --git a/include/jemalloc/internal/arena_types.h b/include/jemalloc/internal/arena_types.h
index 8917ea3a..624937e4 100644
--- a/include/jemalloc/internal/arena_types.h
+++ b/include/jemalloc/internal/arena_types.h
@@ -9,7 +9,7 @@
 
 /* Default decay times in milliseconds. */
 #define DIRTY_DECAY_MS_DEFAULT	ZD(10 * 1000)
-#define MUZZY_DECAY_MS_DEFAULT	ZD(10 * 1000)
+#define MUZZY_DECAY_MS_DEFAULT	(0)
 /* Number of event ticks between time checks. */
 #define DECAY_NTICKS_PER_UPDATE	1000