diff --git a/BUILDING b/BUILDING
index c11ef2621adb0f77b33893b653a4d2c2cc4359ac..cf5508473cd4eff1627a223de67534f454e28f14 100644
--- a/BUILDING
+++ b/BUILDING
@@ -55,7 +55,7 @@ Setting up a build environment
 
     or, if you want to use the git sources directly:
 
-    git clone git://common-lisp.net/projects/cmucl/cmucl.git
+    git clone https://gitlab.common-lisp.net/cmucl/cmucl.git
 
     Whatever you do, the sources must be in a directory named src
     inside the base directory.  Since the build tools keep all