diff --git a/src/Core/Secrets.h b/src/Core/Secrets.h
index cce99a61d..a9f9cfde7 100644
--- a/src/Core/Secrets.h
+++ b/src/Core/Secrets.h
@@ -55,6 +55,7 @@
 #endif
 
 #ifndef GC_CLOUD_OPENDATA_SECRET
+#define OPENDATA_DISABLE
 #define GC_CLOUD_OPENDATA_SECRET "__GC_OPENDATA_SECRET__"
 #endif
 
diff --git a/src/Gui/MainWindow.cpp b/src/Gui/MainWindow.cpp
index 71507b75d..0c81cc6bd 100644
--- a/src/Gui/MainWindow.cpp
+++ b/src/Gui/MainWindow.cpp
@@ -110,6 +110,7 @@
 #include "CloudDBVersion.h"
 #include "GcUpgrade.h"
 #endif
+#include "Secrets.h"
 
 #if defined(_MSC_VER) && defined(_WIN64)
 #include "WindowsCrashHandler.cpp"
@@ -611,11 +612,13 @@ MainWindow::MainWindow(const QDir &home)
      * Lets ask for telemetry and check for updates
      *--------------------------------------------------------------------*/
 
-#if QT_VERSION > 0x050000
+#if QT_VERSION > 0x050000 && !defined(OPENDATA_DISABLE)
     OpenData::check(currentTab->context);
+#else
+    fprintf(stderr, "OpenData disabled, secret not defined.\n"); fflush(stderr);
 #endif
-#ifdef GC_HAS_CLOUD_DB
 
+#ifdef GC_HAS_CLOUD_DB
     telemetryClient = new CloudDBTelemetryClient();
     if (appsettings->value(NULL, GC_ALLOW_TELEMETRY, "undefined").toString() == "undefined" ) {
         // ask user if storing is allowed