diff --git a/src/QGCApplication.cc b/src/QGCApplication.cc
index d735440668c5215dbffd406a223457b4d644b0ab..2617fbea545514679e24acf7a573c8eb91d027b8 100644
--- a/src/QGCApplication.cc
+++ b/src/QGCApplication.cc
@@ -196,39 +196,41 @@ QGCApplication::QGCApplication(int &argc, char* argv[], bool unitTesting)
 
 #ifdef Q_OS_LINUX
 #ifndef __mobile__
-    if (getuid() == 0) {
-        QMessageBox msgBox;
-        msgBox.setInformativeText("You are runnning QGroundControl as root. "
-                                  "You should not do this since it will cause other issues with QGroundControl. "
-                                  "QGroundControl will now exit. "
-                                  "If you are having serial port issues on Ubuntu, execute the following commands to fix most issues:\n"
-                                  "sudo usermod -a -G dialout $USER\n"
-                                  "sudo apt-get remove modemmanager");
-        msgBox.setStandardButtons(QMessageBox::Ok);
-        msgBox.setDefaultButton(QMessageBox::Ok);
-        msgBox.exec();
-        _exit(0);
-    }
+    if (!_runningUnitTests) {
+        if (getuid() == 0) {
+            QMessageBox msgBox;
+            msgBox.setInformativeText("You are runnning QGroundControl as root. "
+                                      "You should not do this since it will cause other issues with QGroundControl. "
+                                      "QGroundControl will now exit. "
+                                      "If you are having serial port issues on Ubuntu, execute the following commands to fix most issues:\n"
+                                      "sudo usermod -a -G dialout $USER\n"
+                                      "sudo apt-get remove modemmanager");
+            msgBox.setStandardButtons(QMessageBox::Ok);
+            msgBox.setDefaultButton(QMessageBox::Ok);
+            msgBox.exec();
+            _exit(0);
+        }
 
-    // Determine if we have the correct permissions to access USB serial devices
-    QFile permFile("/etc/group");
-    if(permFile.open(QIODevice::ReadOnly)) {
-        while(!permFile.atEnd()) {
-            QString line = permFile.readLine();
-            if (line.contains("dialout") && !line.contains(getenv("USER"))) {
-                QMessageBox msgBox;
-                msgBox.setInformativeText("The current user does not have the correct permissions to access serial devices. "
-                                          "You should also remove modemmanager since it also interferes. "
-                                          "If you are using Ubuntu, execute the following commands to fix these issues:\n"
-                                          "sudo usermod -a -G dialout $USER\n"
-                                          "sudo apt-get remove modemmanager");
-                msgBox.setStandardButtons(QMessageBox::Ok);
-                msgBox.setDefaultButton(QMessageBox::Ok);
-                msgBox.exec();
-                break;
+        // Determine if we have the correct permissions to access USB serial devices
+        QFile permFile("/etc/group");
+        if(permFile.open(QIODevice::ReadOnly)) {
+            while(!permFile.atEnd()) {
+                QString line = permFile.readLine();
+                if (line.contains("dialout") && !line.contains(getenv("USER"))) {
+                    QMessageBox msgBox;
+                    msgBox.setInformativeText("The current user does not have the correct permissions to access serial devices. "
+                                              "You should also remove modemmanager since it also interferes. "
+                                              "If you are using Ubuntu, execute the following commands to fix these issues:\n"
+                                              "sudo usermod -a -G dialout $USER\n"
+                                              "sudo apt-get remove modemmanager");
+                    msgBox.setStandardButtons(QMessageBox::Ok);
+                    msgBox.setDefaultButton(QMessageBox::Ok);
+                    msgBox.exec();
+                    break;
+                }
             }
+            permFile.close();
         }
-        permFile.close();
     }
 #endif
 #endif