diff --git a/home/packages/custom/project/default.nix b/home/packages/custom/project/default.nix
index a214371..30399b4 100644
--- a/home/packages/custom/project/default.nix
+++ b/home/packages/custom/project/default.nix
@@ -61,7 +61,9 @@ in writeShellApplication {
           -e SOLR_HOST=localhost \
           -e SOLR_PORT=8983 \
           -e SOLR_SCHEME=http \
-          -e SOLR_CORE=core_de
+          -e SOLR_CORE=core_de \
+          -e SOLR_CORE_DE=core_de \
+          -e SOLR_CORE_EN=core_en
 
         # Open Editor
         tmux send-keys " renice -n 5 \$\$" C-m