diff --git a/pkgs/development/python-modules/cccolutils/default.nix b/pkgs/development/python-modules/cccolutils/default.nix
index 829ebd248c41..53baa3c3e034 100644
--- a/pkgs/development/python-modules/cccolutils/default.nix
+++ b/pkgs/development/python-modules/cccolutils/default.nix
@@ -4,7 +4,7 @@
   fetchPypi,
   git,
   gitpython,
-  krb5,
+  krb5-c, # C krb5 library, not PyPI krb5
   mock,
   pytestCheckHook,
   pythonOlder,
@@ -23,7 +23,7 @@ buildPythonPackage rec {
     hash = "sha256-YzKjG43biRbTZKtzSUHHhtzOfcZfzISHDFolqzrBjL8=";
   };
 
-  buildInputs = [ krb5 ];
+  buildInputs = [ krb5-c ];
 
   propagatedBuildInputs = [
     git
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e4e924cfbd3e..9d130bf76835 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2031,7 +2031,9 @@ self: super: with self; {
 
   cbor = callPackage ../development/python-modules/cbor { };
 
-  cccolutils = callPackage ../development/python-modules/cccolutils { };
+  cccolutils = callPackage ../development/python-modules/cccolutils {
+    krb5-c = pkgs.krb5;
+  };
 
   cdcs = callPackage ../development/python-modules/cdcs { };