diff --git a/companion/src/CMakeLists.txt b/companion/src/CMakeLists.txt
index 9e6508aa3..a0e784e57 100644
--- a/companion/src/CMakeLists.txt
+++ b/companion/src/CMakeLists.txt
@@ -92,6 +92,8 @@ include_directories(
 )
 
 ############# Do macro replacements on input files #############
+string(TIMESTAMP BUILD_YEAR "%Y")
+
 configure_file(${COMPANION_SRC_DIRECTORY}/version.h.in ${CMAKE_BINARY_DIR}/version.h @ONLY)
 configure_file(${COMPANION_SRC_DIRECTORY}/companion.desktop.in ${CMAKE_CURRENT_BINARY_DIR}/companion.desktop @ONLY)
 configure_file(${COMPANION_SRC_DIRECTORY}/simulator.desktop.in ${CMAKE_CURRENT_BINARY_DIR}/simulator.desktop @ONLY)
diff --git a/companion/src/mainwindow.cpp b/companion/src/mainwindow.cpp
index 48e8b9d2c..75421cce5 100644
--- a/companion/src/mainwindow.cpp
+++ b/companion/src/mainwindow.cpp
@@ -668,7 +668,7 @@ void MainWindow::about()
   aboutStr.append("<br/><br/>");
   aboutStr.append(tr("File new <a href='%1'>Issue or Request</a>").arg("https://github.com/EdgeTX/edgetx/issues/new/choose"));
   aboutStr.append("<br/><br/>");
-  aboutStr.append(tr("Copyright") + QString(" &copy; 2024 EdgeTX<br/>"));
+  aboutStr.append(tr("Copyright") + QString(" &copy; 2021-%1 EdgeTX<br/>").arg(BUILD_YEAR));
 
   QMessageBox msgBox(this);
   msgBox.setWindowIcon(CompanionIcon("information.png"));
diff --git a/companion/src/version.h.in b/companion/src/version.h.in
index 5e1a1c8c1..a1d75bb35 100644
--- a/companion/src/version.h.in
+++ b/companion/src/version.h.in
@@ -6,6 +6,7 @@
 #cmakedefine VERSION_TAG  "@VERSION_TAG@"
 #define CODENAME          "@CODENAME@"
 #define GIT_STR           "@GIT_STR@"
+#define BUILD_YEAR        @BUILD_YEAR@
 
 #define VERSION_NUMBER    ((VERSION_MAJOR << 16) | (VERSION_MINOR << 8) | VERSION_REVISION)