diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..2078f9a
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,18 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+    Added     : for new features.
+    Changed   : for changes in existing functionality.
+    Deprecated: for soon-to-be removed features.
+    Removed   : for now removed features.
+    Fixed     : for any bug fixes.
+    Security  : in case of vulnerabilities.
+
+## [1.0.0] - 2022-06-24
+First working version.
+
+## [1.0.1] - 2022-06-26
+
+### Fixed
+- Fritzbox roll over bug: downloaded/uploaded counters rolled over at about 4 GByte
diff --git a/fritz-api.sh b/fritz-api.sh
index 0f22bb2..0d45ea2 100755
--- a/fritz-api.sh
+++ b/fritz-api.sh
@@ -125,8 +125,13 @@ print_json(){
     UPSTREAM=$(find_xml_value "${STATUS2}" NewLayer1UpstreamMaxBitRate)
     BANDWIDTHDOWNBYTES=$(find_xml_value "${STATUS3}" NewByteReceiveRate)
     BANDWIDTHUPBYTES=$(find_xml_value "${STATUS3}" NewByteSendRate)
-    TOTALBWDOWNBYTES=$(find_xml_value "${STATUS3}" NewTotalBytesReceived)
-    TOTALBWUPBYTES=$(find_xml_value "${STATUS3}" NewTotalBytesSent)
+    # NewByteReceiveRate and NewByteSendRate are 32 bit registers overflowing at 4.3*1e9 bytes
+    # Use the 64 bit registers instead:
+    # TOTALBWDOWNBYTES=$(find_xml_value "${STATUS3}" NewTotalBytesReceived)
+    # TOTALBWUPBYTES=$(find_xml_value "${STATUS3}" NewTotalBytesSent)
+    TOTALBWDOWNBYTES=$(find_xml_value "${STATUS3}" NewX_AVM_DE_TotalBytesReceived64)
+    TOTALBWUPBYTES=$(find_xml_value "${STATUS3}" NewX_AVM_DE_TotalBytesSent64)
+    
     if [ "${DEBUG}" -eq 1 ]; then
         echo "DEBUG - Status:"
         echo "$CONNECTIONSTATUS"