diff --git a/gui/src/bitcoin.cpp b/gui/src/bitcoin.cpp
index 403e4c517b7..a5f4a05a07c 100644
--- a/gui/src/bitcoin.cpp
+++ b/gui/src/bitcoin.cpp
@@ -2,6 +2,7 @@
  * W.J. van der Laan 2011
  */
 #include "bitcoingui.h"
+#include "util.h"
 
 #include <QApplication>
 
@@ -9,6 +10,9 @@ int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
 
+    /* Testing on testnet */
+    fTestNet = true;
+
     BitcoinGUI window;
     window.setBalance(1234.567890);
     window.setNumConnections(4);