diff --git a/requirements-old-pyopencl.txt b/requirements-old-pyopencl.txt
index 7d21187d16ec962816dd691d8d11813e9b0ff700..778b2a8409799c7c19f5a4a40bf755087b95e855 100644
--- a/requirements-old-pyopencl.txt
+++ b/requirements-old-pyopencl.txt
@@ -1,6 +1,6 @@
 git+git://github.com/inducer/pytools
 git+git://github.com/inducer/islpy
-cgen
+git+git://github.com/inducer/cgen
 pyopencl==2015.1
 git+git://github.com/inducer/pymbolic