diff --git a/CHANGES b/CHANGES
index e432bee67..f0a3d785f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -39,6 +39,7 @@ Other fixes:
  - Qt: Fix crash when applying changes to GB I/O registers in I/O view
  - Qt: Fix LCDC background priority/enable bit being mis-mapped in I/O view
  - Qt: Fix saving named states breaking when screenshot states disabled (fixes mgba.io/i/3320)
+ - Qt: Fix installer updates if a version number is in the filename (fixes mgba.io/i/3109)
  - Updater: Fix updating appimage across filesystems
 Misc:
  - Core: Handle relative paths for saves, screenshots, etc consistently (fixes mgba.io/i/2826)
diff --git a/src/platform/qt/GBAApp.cpp b/src/platform/qt/GBAApp.cpp
index fdc710c0c..90fc89170 100644
--- a/src/platform/qt/GBAApp.cpp
+++ b/src/platform/qt/GBAApp.cpp
@@ -370,7 +370,7 @@ void GBAApp::cleanupAfterUpdate() {
 void GBAApp::restartForUpdate() {
 	QFileInfo updaterPath(m_updater.updateInfo().url.path());
 	QDir configDir(ConfigController::configDir());
-	if (updaterPath.completeSuffix() == "exe") {
+	if (updaterPath.suffix() == "exe") {
 		m_invokeOnExit = configDir.filePath(QLatin1String("update.exe"));
 	} else {
 		QFile updater(":/updater");