diff --git a/src/main_window.cpp b/src/main_window.cpp
index b737482..3d7b1b7 100755
--- a/src/main_window.cpp
+++ b/src/main_window.cpp
@@ -481,7 +481,7 @@ bool AC_MainWindow::startCamera(int res, int dev, const QString &outdir, bool re
 #if defined(__APPLE__) || defined(__linux__)
     ext = (type == 0) ? ".mov" : ".avi";
 #else
-    ext = ".mov";
+    ext = (type == 0) ? ".mov" : ".mov";
 #endif
     Log(tr("Capture Device Opened [Camera]\n"));
     std::ostringstream time_stream;
@@ -591,7 +591,7 @@ bool AC_MainWindow::startVideo(const QString &filename, const QString &outdir, b
 #if defined(__APPLE__) || defined(__linux__)
     ext = (type == 0) ? ".mov" : ".avi";
 #else
-    ext = ".mov";
+    ext = (type == 0) ? ".mov" : ".mov";
 #endif
     std::ostringstream time_stream;
     time_stream << "-" << (m->tm_year + 1900) << "." << (m->tm_mon + 1) << "." << m->tm_mday << "_" << m->tm_hour << "." << m->tm_min << "." << m->tm_sec <<  "_";