diff --git a/pkgs/development/chez-modules/chez-mit/default.nix b/pkgs/development/chez-modules/chez-mit/default.nix
index fc2c0f7ba4f..3942195aaa7 100644
--- a/pkgs/development/chez-modules/chez-mit/default.nix
+++ b/pkgs/development/chez-modules/chez-mit/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   buildInputs = [ chez chez-srfi ];
 
   buildPhase = ''
-    export CHEZSCHEMELIBDIRS=${chez-srfi}/lib/csv9.5-site
+    export CHEZSCHEMELIBDIRS=${chez-srfi}/lib/csv-site
     make PREFIX=$out CHEZ=${chez}/bin/scheme
   '';
 
diff --git a/pkgs/development/chez-modules/chez-scmutils/default.nix b/pkgs/development/chez-modules/chez-scmutils/default.nix
index 861ff4ff46b..cda24f0959a 100644
--- a/pkgs/development/chez-modules/chez-scmutils/default.nix
+++ b/pkgs/development/chez-modules/chez-scmutils/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   buildInputs = [ chez chez-srfi chez-mit ];
 
   buildPhase = ''
-    export CHEZSCHEMELIBDIRS=${chez-srfi}/lib/csv9.5-site:${chez-mit}/lib/csv9.5-site
+    export CHEZSCHEMELIBDIRS=${chez-srfi}/lib/csv-site:${chez-mit}/lib/csv-site
     make PREFIX=$out CHEZ=${chez}/bin/scheme
   '';