diff --git a/src/alt-langs/scheme/scm-slang b/src/alt-langs/scheme/scm-slang
index 7d5508176..d01ff992e 160000
--- a/src/alt-langs/scheme/scm-slang
+++ b/src/alt-langs/scheme/scm-slang
@@ -1 +1 @@
-Subproject commit 7d5508176694f63ae92debe43d58091cf92b7505
+Subproject commit d01ff992e9eb5ee01a6cd9439b5ea1ae40a412b7