diff --git a/nixos/boxes/form3/default.nix b/nixos/boxes/form3/default.nix
index 3f04860b..ef5418bb 100644
--- a/nixos/boxes/form3/default.nix
+++ b/nixos/boxes/form3/default.nix
@@ -40,6 +40,7 @@ in {
   ];
   security.pki.certificateFiles = [ form3_cert_path system_cert_bundle_path ];
   environment.variables = {
+    SSL_CERT_FILE = form3_cert_bundle;
     NIX_SSL_CERT_FILE = form3_cert_bundle;
     BUNDLE_SSL_CA_CERT = form3_cert_bundle;
     CARGO_NET_GIT_FETCH_WITH_CLI = "true";