diff --git a/jemalloc/src/ctl.c b/jemalloc/src/ctl.c
index 3c8adab9..0b8b06f3 100644
--- a/jemalloc/src/ctl.c
+++ b/jemalloc/src/ctl.c
@@ -1137,6 +1137,11 @@ thread_arena_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
 
 		/* Set new arena association. */
 		ARENA_SET(arena);
+		{
+			tcache_t *tcache = TCACHE_GET();
+			if (tcache != NULL)
+				tcache->arena = arena;
+		}
 	}
 
 	ret = 0;