diff --git a/garlic/exp/index.nix b/garlic/exp/index.nix
index 5477fd5..7e40ba0 100644
--- a/garlic/exp/index.nix
+++ b/garlic/exp/index.nix
@@ -8,7 +8,7 @@
 
 {
   nbody = rec {
-    granularity = callPackage ./nbody/granularity-mpi.nix { };
+    granularity = callPackage ./nbody/granularity.nix { };
     nodesorsockets = callPackage ./nbody/nodes-or-sockets-mpi.nix { };
     scaling = callPackage ./nbody/strong-scaling-mpi.nix { };
   };
diff --git a/garlic/exp/nbody/granularity-mpi.nix b/garlic/exp/nbody/granularity.nix
similarity index 100%
rename from garlic/exp/nbody/granularity-mpi.nix
rename to garlic/exp/nbody/granularity.nix