diff --git a/shell.nix b/shell.nix
index f7b6817bda6..20ff724d272 100644
--- a/shell.nix
+++ b/shell.nix
@@ -3,7 +3,12 @@
 (
   pkgs.buildFHSUserEnv {
     name = "client-java-shell";
-    targetPkgs = pkgs: with pkgs;[ maven openjdk8 git ];
-    runScript = "bash";
+    targetPkgs = pkgs: with pkgs;[ git maven openjdk8 ];
+    runScript = ''
+      env \
+       GIT_SSL_CAINFO=/etc/ssl/certs/ca-certificates.crt \
+       JAVA_HOME=${pkgs.openjdk8}/lib/openjdk \
+       bash
+    '';
   }
 ).env