1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/tools/backup/tarsnapper/default.nix b/nixpkgs/pkgs/tools/backup/tarsnapper/default.nix
index b02ce82291aa..a5ad2c3625c1 100644
--- a/nixpkgs/pkgs/tools/backup/tarsnapper/default.nix
+++ b/nixpkgs/pkgs/tools/backup/tarsnapper/default.nix
@@ -17,7 +17,7 @@ python3Packages.buildPythonApplication rec {
     py.test .
   '';
 
-  propagatedBuildInputs = with python3Packages; [ pyyaml dateutil pexpect ];
+  propagatedBuildInputs = with python3Packages; [ pyyaml python-dateutil pexpect ];
 
   patches = [ ./remove-argparse.patch ];