diff --git a/pkgs/development/python-modules/aspy.yaml/default.nix b/pkgs/development/python-modules/aspy-yaml/default.nix
similarity index 87%
rename from pkgs/development/python-modules/aspy.yaml/default.nix
rename to pkgs/development/python-modules/aspy-yaml/default.nix
index 09543479014e..732d19be0d10 100644
--- a/pkgs/development/python-modules/aspy.yaml/default.nix
+++ b/pkgs/development/python-modules/aspy-yaml/default.nix
@@ -1,12 +1,13 @@
 { lib, buildPythonPackage, fetchPypi, pyyaml }:
 
 buildPythonPackage rec {
-  pname = "aspy.yaml";
+  pname = "aspy-yaml";
   version = "1.3.0";
   format = "setuptools";
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "aspy.yaml";
+    inherit version;
     sha256 = "0i9z2jm2hjwdxdv4vw4kbs70h2ciz49rv8w73zbawb7z5qw45iz7";
   };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5ae790164ba2..06a2de3541da 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -815,7 +815,7 @@ self: super: with self; {
 
   aspy-refactor-imports = callPackage ../development/python-modules/aspy-refactor-imports { };
 
-  aspy-yaml = callPackage ../development/python-modules/aspy.yaml { };
+  aspy-yaml = callPackage ../development/python-modules/aspy-yaml { };
 
   assay = callPackage ../development/python-modules/assay { };