diff --git a/pkgs/development/python-modules/IPy/default.nix b/pkgs/development/python-modules/ipy/default.nix
similarity index 90%
rename from pkgs/development/python-modules/IPy/default.nix
rename to pkgs/development/python-modules/ipy/default.nix
index f8291ee8ac5b..8a2f64ce3638 100644
--- a/pkgs/development/python-modules/IPy/default.nix
+++ b/pkgs/development/python-modules/ipy/default.nix
@@ -1,12 +1,13 @@
 { lib, buildPythonPackage, fetchPypi, nose }:
 
 buildPythonPackage rec {
-  pname = "IPy";
+  pname = "ipy";
   version = "1.01";
   format = "setuptools";
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "IPy";
+    inherit version;
     sha256 = "edeca741dea2d54aca568fa23740288c3fe86c0f3ea700344571e9ef14a7cc1a";
   };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5340d443ace8..2fed59c03d0e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5744,7 +5744,7 @@ self: super: with self; {
 
   ipwhois = callPackage ../development/python-modules/ipwhois { };
 
-  ipy = callPackage ../development/python-modules/IPy { };
+  ipy = callPackage ../development/python-modules/ipy { };
 
   ipycanvas = callPackage ../development/python-modules/ipycanvas { };