diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2befce8dea74..f986f37b9b12 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7763,7 +7763,9 @@ with pkgs;
 
   jsoncpp = callPackage ../development/libraries/jsoncpp { };
 
-  jsonnet = callPackage ../development/compilers/jsonnet { };
+  jsonnet = callPackage ../development/compilers/jsonnet {
+    emscripten = emscripten.override {python=python2;};
+  };
 
   libjson = callPackage ../development/libraries/libjson { };