diff --git a/pkgs/development/python-modules/smpp.pdu/default.nix b/pkgs/development/python-modules/smpp-pdu/default.nix
similarity index 97%
rename from pkgs/development/python-modules/smpp.pdu/default.nix
rename to pkgs/development/python-modules/smpp-pdu/default.nix
index 8860c4b2c531..e320b7e242c6 100644
--- a/pkgs/development/python-modules/smpp.pdu/default.nix
+++ b/pkgs/development/python-modules/smpp-pdu/default.nix
@@ -10,7 +10,7 @@
 }:
 
 buildPythonPackage {
-  pname = "smpp.pdu";
+  pname = "smpp-pdu";
   version = "unstable-2022-09-02";
   format = "pyproject";
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2ccfa2087a5f..5ae790164ba2 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -13950,7 +13950,7 @@ self: super: with self; {
 
   smpplib = callPackage ../development/python-modules/smpplib { };
 
-  smpp-pdu = callPackage ../development/python-modules/smpp.pdu { };
+  smpp-pdu = callPackage ../development/python-modules/smpp-pdu { };
 
   smtpdfix = callPackage ../development/python-modules/smtpdfix { };