diff --git a/ChangeLog b/ChangeLog
index 8a4e4d2bc..59eca2dd3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -82,6 +82,7 @@ Enhancements:
 - #7437 Show message box explaining why settings are read-only
 - #7438 Compare result of `clickedButton` instead of `exec`
 - #7440 Fixed light logo filename on about screen
+- #7441 Share file line logic between logger and message box
 
 # 1.14.6
 
diff --git a/src/lib/gui/Logger.cpp b/src/lib/gui/Logger.cpp
index 76bb2547b..f61f4ec09 100644
--- a/src/lib/gui/Logger.cpp
+++ b/src/lib/gui/Logger.cpp
@@ -40,13 +40,6 @@ const auto kForceDebugMessages = QStringList{
 
 Logger Logger::s_instance;
 
-QString fileLine(const QMessageLogContext &context) {
-  if (!context.file) {
-    return "";
-  }
-  return QString("%1:%2").arg(context.file).arg(context.line);
-}
-
 QString printLine(
     FILE *out, const QString &type, const QString &message,
     const QString &fileLine = "") {
@@ -97,8 +90,7 @@ void Logger::logVerbose(const QString &message) const {
 }
 
 void Logger::handleMessage(
-    const QtMsgType type, const QMessageLogContext &context,
-    const QString &message) {
+    const QtMsgType type, const QString &fileLine, const QString &message) {
 
   auto mutatedType = type;
   if (kForceDebugMessages.contains(message)) {
@@ -131,7 +123,7 @@ void Logger::handleMessage(
     break;
   }
 
-  const auto logLine = printLine(out, typeString, message, fileLine(context));
+  const auto logLine = printLine(out, typeString, message, fileLine);
   emit newLine(logLine);
 }
 
diff --git a/src/lib/gui/Logger.h b/src/lib/gui/Logger.h
index bf6d5312b..dc1bab89d 100644
--- a/src/lib/gui/Logger.h
+++ b/src/lib/gui/Logger.h
@@ -35,8 +35,7 @@ public:
 
   void loadEnvVars();
   void handleMessage(
-      const QtMsgType type, const QMessageLogContext &context,
-      const QString &message);
+      const QtMsgType type, const QString &fileLine, const QString &message);
   void logVerbose(const QString &message) const;
 
 signals:
diff --git a/src/lib/gui/messages.cpp b/src/lib/gui/messages.cpp
index 4ad6ac960..d0066fd7f 100644
--- a/src/lib/gui/messages.cpp
+++ b/src/lib/gui/messages.cpp
@@ -50,9 +50,7 @@ void raiseCriticalDialog() {
 }
 
 void showErrorDialog(
-    const QString &message, const QMessageLogContext &context, QtMsgType type) {
-  auto filename = QFileInfo(context.file).fileName();
-  auto contextString = QString("%1:%2").arg(filename).arg(context.line);
+    const QString &message, const QString &fileLine, QtMsgType type) {
 
   auto title = type == QtFatalMsg ? "Fatal error" : "Critical error";
   QString text;
@@ -75,8 +73,7 @@ void showErrorDialog(
   }
 
   const QString version = QString::fromStdString(synergy::version());
-  text +=
-      QString("<pre>v%1\n%2\n%3</pre>").arg(version, message, contextString);
+  text += QString("<pre>v%1\n%2\n%3</pre>").arg(version, message, fileLine);
 
   if (type == QtFatalMsg) {
     // create a blocking message box for fatal errors, as we want to wait
@@ -109,13 +106,21 @@ void showErrorDialog(
   }
 }
 
+QString fileLine(const QMessageLogContext &context) {
+  if (!context.file) {
+    return "";
+  }
+  return QString("%1:%2").arg(context.file).arg(context.line);
+}
+
 void messageHandler(
     QtMsgType type, const QMessageLogContext &context, const QString &message) {
 
-  Logger::instance().handleMessage(type, context, message);
+  const auto fileLine = messages::fileLine(context);
+  Logger::instance().handleMessage(type, fileLine, message);
 
   if (type == QtFatalMsg || type == QtCriticalMsg) {
-    showErrorDialog(message, context, type);
+    showErrorDialog(message, fileLine, type);
   }
 
   if (type == QtFatalMsg) {
diff --git a/src/test/unittests/gui/LoggerTests.cpp b/src/test/unittests/gui/LoggerTests.cpp
index a572e5c86..51c6a158e 100644
--- a/src/test/unittests/gui/LoggerTests.cpp
+++ b/src/test/unittests/gui/LoggerTests.cpp
@@ -34,7 +34,7 @@ TEST(LoggerTests, handleMessage_withDebugEnvVarOn_emitsNewLine) {
   qputenv("SYNERGY_GUI_DEBUG", "true");
   logger.loadEnvVars();
 
-  logger.handleMessage(QtDebugMsg, QMessageLogContext(), "test");
+  logger.handleMessage(QtDebugMsg, "stub", "test");
 
   EXPECT_THAT(newLineEmitted, HasSubstr("test"));
 
@@ -50,7 +50,7 @@ TEST(LoggerTests, handleMessage_withDebugEnvVarOff_doesNotEmitNewLine) {
   qputenv("SYNERGY_GUI_DEBUG", "false");
   logger.loadEnvVars();
 
-  logger.handleMessage(QtDebugMsg, QMessageLogContext(), "test");
+  logger.handleMessage(QtDebugMsg, "stub", "test");
 
   EXPECT_FALSE(newLineEmitted);