diff --git a/nixos/big_data.nix b/nixos/big_data.nix
index 7e30fad..a734dbc 100644
--- a/nixos/big_data.nix
+++ b/nixos/big_data.nix
@@ -74,6 +74,7 @@ let
       spark.history.kerberos.principal				spark/my.engine@MY.ENGINE
       spark.yarn.appMasterEnv.PYSPARK_PYTHON	${pysparkEnv.outPath}/bin/${pysparkEnv.executable}
       spark.yarn.appMasterEnv.PYTHONPATH			${pysparkEnv.outPath}/lib/${pysparkEnv.executable}/site-packages
+      spark.executorEnv.PYSPARK_PYTHON        ${pysparkEnv.outPath}/bin/${pysparkEnv.executable}
       STOP
     '';
   };