diff --git a/collects/mzlib/unit.ss b/collects/mzlib/unit.ss
index accaa53..6f8c752 100644
--- a/collects/mzlib/unit.ss
+++ b/collects/mzlib/unit.ss
@@ -643,7 +643,7 @@
 					(string->symbol
 					 (string-append
 					  prefix
-					  (symbol->string s)))
+					  (symbol->string (syntax-e s))))
 					s s))
 				     (syntax->list (syntax exports))))
 			      (syntax exports))]