diff --git a/pkgs/applications/misc/calcurse/default.nix b/pkgs/applications/misc/calcurse/default.nix
index d4b07cb91dcd..8800ebd83ca0 100644
--- a/pkgs/applications/misc/calcurse/default.nix
+++ b/pkgs/applications/misc/calcurse/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   pythonEnv = python3Packages.python.buildEnv.override {
     extraLibs = [ python3Packages.httplib2 ];
   };
-  propogatedBuildInputs = [ pythonEnv ];
+  propagatedBuildInputs = [ pythonEnv ];
 
   postInstall = ''
     substituteInPlace $out/bin/calcurse-caldav --replace /usr/bin/python3 ${pythonEnv}/bin/python3
diff --git a/pkgs/development/python-modules/backports_csv/default.nix b/pkgs/development/python-modules/backports_csv/default.nix
index 5f2e90e50b8d..479792a7ca59 100644
--- a/pkgs/development/python-modules/backports_csv/default.nix
+++ b/pkgs/development/python-modules/backports_csv/default.nix
@@ -11,7 +11,7 @@ buildPythonPackage rec {
     sha256 = "1imzbrradkfn8s2m1qcimyn74dn1mz2p3j381jljn166rf2i6hlc";
   };
 
-  propogatedBuildInputs = [ future ];
+  propagatedBuildInputs = [ future ];
 
   meta = with stdenv.lib; {
     description = "Backport of Python 3 csv module";