diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 318b65ce49db..9fd556e0370c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -30707,7 +30707,9 @@ in
 
   scotch = callPackage ../applications/science/math/scotch { };
 
-  mininet = callPackage ../tools/virtualization/mininet { };
+  mininet = callPackage ../tools/virtualization/mininet {
+    python = python3;
+  };
 
   msieve = callPackage ../applications/science/math/msieve { };