diff --git a/modules/electrs.nix b/modules/electrs.nix
index 4804eb7..960186a 100644
--- a/modules/electrs.nix
+++ b/modules/electrs.nix
@@ -90,6 +90,7 @@ in {
             else
               "--jsonrpc-import --index-batch-size=10"
           } \
+          --network=${bitcoind.makeNetworkName "bitcoin" "regtest"} \
           --db-dir='${cfg.dataDir}' \
           --daemon-dir='${bitcoind.dataDir}' \
           --electrum-rpc-addr=${cfg.address}:${toString cfg.port} \