diff --git a/sysdeps/tahoe/Implies b/sysdeps/tahoe/Implies
index 7277f3d7f9..29a36ec255 100644
--- a/sysdeps/tahoe/Implies
+++ b/sysdeps/tahoe/Implies
@@ -1,2 +1,2 @@
-../math/bsd/tahoe
+$(bsdmath)tahoe
 vax