diff --git a/pkgs/development/libraries/galario/default.nix b/pkgs/development/libraries/galario/default.nix
index 888f26f2da7..4e28f84bacd 100644
--- a/pkgs/development/libraries/galario/default.nix
+++ b/pkgs/development/libraries/galario/default.nix
@@ -5,7 +5,7 @@
 , fftw
 , fftwFloat
 , enablePython ? false
-, pythonPackages
+, pythonPackages ? null
 , llvmPackages
 }:
 let