diff --git a/app/qtapp/rtknavi_qt/navimain.cpp b/app/qtapp/rtknavi_qt/navimain.cpp
index 1f3f4db6b..673fd6443 100644
--- a/app/qtapp/rtknavi_qt/navimain.cpp
+++ b/app/qtapp/rtknavi_qt/navimain.cpp
@@ -514,10 +514,8 @@ void MainWindow::showOptionsDialog()
 
         strfmt[i] = inputFormat[i];
 
-        if (!streamEnabled[i]) {
-            strtype[i] = STR_NONE;
-            strncpy(strpath[i], "", MAXSTR-1);
-        } else if (strtype[i] == STR_SERIAL) {
+        strncpy(strpath[i], "", MAXSTR-1);
+        if (strtype[i] == STR_SERIAL) {
             strncpy(strpath[i], qPrintable(paths[i][0]), MAXSTR-1);
         } else if (strtype[i] == STR_FILE) {
             strncpy(strpath[i], qPrintable(paths[i][2]), MAXSTR-1);