diff --git a/racket/src/worksp/csbuild.rkt b/racket/src/worksp/csbuild.rkt
index 4644d43ef9..e9a9fa75f3 100644
--- a/racket/src/worksp/csbuild.rkt
+++ b/racket/src/worksp/csbuild.rkt
@@ -83,7 +83,7 @@
             (build-path scheme-dir "nanopass"))
      (clone (format "~astex/.git" extra-repos-base)
             (build-path scheme-dir "stex"))
-     (clone (format "~aglib/.git" extra-repos-base)
+     (clone (format "~azlib/.git" extra-repos-base)
             (build-path scheme-dir "zlib"))]
     [else
      (clone "https://github.com/mflatt/ChezScheme"