diff --git a/backend/db.coffee b/backend/db.coffee
index 7d729e1..734770c 100644
--- a/backend/db.coffee
+++ b/backend/db.coffee
@@ -187,13 +187,15 @@ class FFTCGDB
   modDeck: (userID, deckID, deckCards) ->
     new Promise (resolve, reject) =>
       stmt = @db.prepare 'UPDATE decks SET json = ? WHERE deck = ? AND user = ?'
-      stmt.run [JSON.stringify deckCards, deckID, userID], (err) ->
+      stmt.run [(JSON.stringify deckCards), deckID, userID], (err) ->
         stmt.finalize()
         if err
           logger.warn "modDeck: FAIL db '#{err.code}' for '#{deckID}'"
           reject messages.db
+        else if @changes == 0
+          logger.warn "no changes for input (#{userID}, #{deckID}, #{JSON.stringify deckCards})!"
+          reject messages.db
         else
-          logger.debug "modDeck: OK '#{deckID}'"
           resolve deckID
 
   getDecks: (userID) ->
diff --git a/backend/routes/decks/modify.coffee b/backend/routes/decks/modify.coffee
new file mode 100644
index 0000000..9cb8009
--- /dev/null
+++ b/backend/routes/decks/modify.coffee
@@ -0,0 +1,34 @@
+logger = (require 'logging').default '/decks/modify'
+
+# session storage (volatile data)
+session = (require '../../session')
+# fftcg.db (persistent data)
+fftcgdb = (require '../../db')
+
+module.exports =
+  url: '/decks/modify'
+  method: 'POST'
+  # schema: (require './modify.schema')
+
+  handler: (request, reply) ->
+    session.check request.body.session ? ""
+    .then (userid) ->
+      # active session found, get associated user
+      fftcgdb.modDeck (userid), (request.body.deckID), (request.body.deckCards)
+      .then (deckID) ->
+        logger.info "OK user '#{userid}' modified deck '#{deckID}'"
+        reply.send
+          success: true
+          deck: deckID
+
+      .catch (err) ->
+        # couldnt get user details
+        logger.warn "FAIL '#{err}' for user id '#{userid}'"
+        reply.send
+          success: false
+
+    .catch ->
+      # no session found
+      logger.info "FAIL '#{request.body.session}' session not found"
+      reply.send
+        success: false
diff --git a/backend/server.coffee b/backend/server.coffee
index 45a22bb..021ec57 100644
--- a/backend/server.coffee
+++ b/backend/server.coffee
@@ -22,6 +22,8 @@ fastify.route (require "./routes/#{route}") for route in [
   'user/register'
   # list decks
   'decks/list'
+  # modify deck
+  'decks/modify'
 ]
 
 # request logging
diff --git a/frontend/src/components/forms/DeckEditor.vue b/frontend/src/components/forms/DeckEditor.vue
index 4ef144e..69a1e99 100644
--- a/frontend/src/components/forms/DeckEditor.vue
+++ b/frontend/src/components/forms/DeckEditor.vue
@@ -42,6 +42,9 @@
 </template>
 
 <script>
+import * as Cookies from 'js-cookie'
+import axios from '@/plugins/axios'
+
 export default {
   name: 'DeckEditor',
 
@@ -57,6 +60,10 @@ export default {
     checked: false
   }),
 
+  computed: {
+    session: () => Cookies.get('session')
+  },
+
   methods: {
     parse_deck(deck_string) {
       let retval = {
@@ -164,6 +171,22 @@ export default {
 
       // deck has now been checked
       this.checked = true
+    },
+
+    save() {
+      let new_deck = this.parse_deck(this.$refs.textarea.lazyValue)
+
+      axios
+        .post('/decks/modify', {
+          session: this.session,
+          deckID: this.id,
+          deckCards: new_deck
+        })
+        .then(response => {
+          if (response.data.success) {
+            this.close()
+          }
+        })
     }
   },