diff --git a/install/generator-cyphernode/generators/app/index.js b/install/generator-cyphernode/generators/app/index.js
index 62cd832..a6e882b 100644
--- a/install/generator-cyphernode/generators/app/index.js
+++ b/install/generator-cyphernode/generators/app/index.js
@@ -213,8 +213,10 @@ module.exports = class extends Generator {
       delete this.props.lightning_version;
       delete this.props.grafana_version;
     }
-    
+
     this._assignConfigDefaults();
+    this._resolveConfigConflicts();
+
     for( let c of this.featureChoices ) {
       c.checked = this._isChecked( 'features', c.value );
     }
@@ -324,6 +326,8 @@ module.exports = class extends Generator {
   }
 
   async writing() {
+    this._resolveConfigConflicts()
+
     const configJsonString = JSON.stringify(this.props, null, 4);
     const archive = new Archive( this.destinationPath('config.7z'), this.configurationPassword );
 
@@ -383,6 +387,13 @@ module.exports = class extends Generator {
 
   /* some utils */
 
+  _resolveConfigConflicts() {
+    if( this.props.features.indexOf('lightning') !== -1 ) {
+      this.props.bitcoin_prune = false;
+      delete this.props.bitcoin_prune_size;
+    }
+  }
+
   _assignConfigDefaults() {
     this.props = Object.assign( {
       features: [],
diff --git a/install/generator-cyphernode/generators/app/prompters/200_lightning.js b/install/generator-cyphernode/generators/app/prompters/100_lightning.js
similarity index 100%
rename from install/generator-cyphernode/generators/app/prompters/200_lightning.js
rename to install/generator-cyphernode/generators/app/prompters/100_lightning.js
diff --git a/install/generator-cyphernode/generators/app/prompters/100_bitcoin.js b/install/generator-cyphernode/generators/app/prompters/900_bitcoin.js
similarity index 91%
rename from install/generator-cyphernode/generators/app/prompters/100_bitcoin.js
rename to install/generator-cyphernode/generators/app/prompters/900_bitcoin.js
index 62d7862..faf1543 100644
--- a/install/generator-cyphernode/generators/app/prompters/100_bitcoin.js
+++ b/install/generator-cyphernode/generators/app/prompters/900_bitcoin.js
@@ -23,7 +23,7 @@ const bitcoinInternalAndPrune = function(props) {
 };
 
 module.exports = {
-  name: function() { 
+  name: function() {
     return name;
   },
   prompts: function( utils ) {
@@ -68,14 +68,18 @@ module.exports = {
       filter: utils._trimFilter,
     },
     {
-      when: bitcoinInternal,
+      when: function(props) {
+        return bitcoinInternal( props ) && props.features.indexOf('lightning') === -1;
+      },
       type: 'confirm',
       name: 'bitcoin_prune',
       default: utils._getDefault( 'bitcoin_prune' ),
       message: prefix()+'Run bitcoin node in prune mode?'+utils._getHelp('bitcoin_prune'),
     },
     {
-      when: bitcoinInternalAndPrune,
+      when: function(props) {
+        return bitcoinInternalAndPrune( props ) && props.features.indexOf('lightning') === -1;
+      },
       type: 'input',
       name: 'bitcoin_prune_size',
       default: utils._getDefault( 'bitcoin_prune_size' ),