diff --git a/acb/rising_ui_get_mag.c b/acb/rising_ui_get_mag.c
index f1416028..00f5efeb 100644
--- a/acb/rising_ui_get_mag.c
+++ b/acb/rising_ui_get_mag.c
@@ -116,6 +116,7 @@ acb_rising_ui_get_mag(mag_t bound, const acb_t s, ulong n)
 
         arb_clear(a);
         mag_clear(bound2);
+        mag_clear(t);
         mag_clear(u);
     }