diff --git a/examples/configuration.nix b/examples/configuration.nix
index e050c45..d6b6709 100644
--- a/examples/configuration.nix
+++ b/examples/configuration.nix
@@ -23,7 +23,11 @@
   ### BITCOIND
   # Bitcoind is enabled by default if nix-bitcoin is enabled
   #
-  # You can override default settings from secure-node.nix as follows
+  # Enable this option to set pruning to a specified MiB value.
+  # clightning is compatible with pruning. See
+  # https://github.com/ElementsProject/lightning/#pruning for more information.
+  # LND and electrs are not compatible with pruning.
+  # Note: You can override default settings from secure-node.nix as follows
   # services.bitcoind.prune = lib.mkForce 100000;
   #
   # You can add options that are not defined in modules/bitcoind.nix as follows