diff --git a/test/tests.nix b/test/tests.nix
index 193c9f4..190616f 100644
--- a/test/tests.nix
+++ b/test/tests.nix
@@ -95,6 +95,7 @@ let
       };
       # Needed to test macaroon creation
       environment.systemPackages = mkIfTest "btcpayserver" (with pkgs; [ openssl xxd ]);
+      test.data.btcpayserver-lbtc = config.services.btcpayserver.lbtc;
 
       tests.joinmarket = cfg.joinmarket.enable;
       tests.joinmarket-yieldgenerator = cfg.joinmarket.yieldgenerator.enable;
@@ -264,6 +265,21 @@ let
 
       # `validatepegin` is incompatible with regtest
       services.liquidd.validatepegin = mkForce false;
+
+      # TODO-EXTERNAL:
+      # Reenable `btcpayserver.lbtc` in regtest (and add test in tests.py)
+      # when nbxplorer can parse liquidd regtest blocks.
+      #
+      # When `btcpayserver.lbtc` is enabled in regtest, nxbplorer tries to
+      # generate regtest blocks, which fails because no liquidd wallet exists.
+      # When blocks are pre-generated via `liquidd.postStart`, nbxplorer
+      # fails to parse the blocks:
+      #   info: NBXplorer.Indexer.LBTC: Full node version detected: 210002
+      #   info: NBXplorer.Indexer.LBTC: NBXplorer is correctly whitelisted by the node
+      #     fail: NBXplorer.Indexer.LBTC: Unhandled exception in the indexer, retrying in 10 seconds
+      #       System.IO.EndOfStreamException: No more byte to read
+      #         at NBitcoin.BitcoinStream.ReadWriteBytes(Span`1 data)
+      services.btcpayserver.lbtc = mkForce false;
     };
 
     ## Examples / debug helper
diff --git a/test/tests.py b/test/tests.py
index c6cab60..9f2f386 100644
--- a/test/tests.py
+++ b/test/tests.py
@@ -188,7 +188,7 @@ def _():
 def _():
     assert_running("nbxplorer")
     machine.wait_until_succeeds(log_has_string("nbxplorer", "BTC: RPC connection successful"))
-    if "liquidd" in enabled_tests:
+    if test_data["btcpayserver-lbtc"]:
         machine.wait_until_succeeds(log_has_string("nbxplorer", "LBTC: RPC connection successful"))
     wait_for_open_port(ip("nbxplorer"), 24444)
 
@@ -399,12 +399,6 @@ def _():
         succeed("runuser -u operator -- pool orders list")
     if enabled("btcpayserver"):
         machine.wait_until_succeeds(log_has_string("nbxplorer", f"BTC: Starting scan at block {num_blocks}"))
-        # TODO-EXTERNAL:
-        # nbxplorer 2.2.16 currently fails with with lbtc (liquidd) on regtest
-        # LBTC: Full node version detected: 210000
-        # LBTC: RPC connection successful
-        # LBTC: Failed to connect to RPC
-        # System.IO.EndOfStreamException: No more byte to read
 
 if "netns-isolation" in enabled_tests:
     def ip(name):