diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c324ae1c00c7..4e99e61114c8 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -15564,7 +15564,7 @@ let
       sha256 = "6380eb38d0b5770d7e50813c8a48ff7c373b2187b4220339c1adce803df01c59";
     };
 
-    buildInputs = with self; [ nose decorator ];
+    propagatedBuildInputs = with self; [ nose decorator ];
 
     meta = {
       homepage = "https://networkx.github.io/";