diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 150c42e4..bdd1034b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,11 +14,16 @@ jobs:
     steps:
     - name: Check out code from repo
       uses: actions/checkout@v1
-    - name: Get release version from tag
+    - name: Get release version for filenames
       id: release_tag
       env:
         GITHUB_REF: ${{ github.ref }}
       run: echo ::set-output name=tag::$(echo ${GITHUB_REF:11})
+    - name: Get release version for code
+      id: release_tag
+      env:
+        GITHUB_REF: ${{ github.ref }}
+      run: echo ::set-env name=GITHUB_TAG::$(echo ${GITHUB_REF##*/})
     - name: Cache Python dependencies
       uses: actions/cache@v1
       with:
diff --git a/scripts/addversion.py b/scripts/addversion.py
index 7453a4a1..5d6e9952 100644
--- a/scripts/addversion.py
+++ b/scripts/addversion.py
@@ -1,7 +1,7 @@
 import os
 
 FILENAME_VERSION_H = 'src/version.h'
-version = os.environ.get('GITHUB_REF')
+version = os.environ.get('GITHUB_TAG')
 if version == None:
     version = "SNAPSHOT"
 
diff --git a/src/AmsToMqttBridge.ino b/src/AmsToMqttBridge.ino
index a79cb589..1712c53f 100644
--- a/src/AmsToMqttBridge.ino
+++ b/src/AmsToMqttBridge.ino
@@ -17,6 +17,7 @@
  */
 
 #include "AmsToMqttBridge.h"
+#define ARDUINOJSON_POSITIVE_EXPONENTIATION_THRESHOLD 1e9
 #include <ArduinoJson.h>
 #include <MQTT.h>
 #include <DNSServer.h>