diff --git a/retroshare-gui/src/main.cpp b/retroshare-gui/src/main.cpp
index 2bb78ac5b..f7e7c835d 100644
--- a/retroshare-gui/src/main.cpp
+++ b/retroshare-gui/src/main.cpp
@@ -46,6 +46,10 @@
 #include "util/RsGxsUpdateBroadcast.h"
 #include "gui/settings/WebuiPage.h"
 
+#ifdef SIGFPE_DEBUG
+#include <fenv.h>
+#endif
+
 #if QT_VERSION >= QT_VERSION_CHECK (5, 0, 0)
 #ifdef WINDOWS_SYS
 #include <QFileDialog>
@@ -155,6 +159,9 @@ int main(int argc, char *argv[])
 		QApplication app(argc, argv);
 		QDir::setCurrent(QCoreApplication::applicationDirPath());
 	}
+#endif
+#ifdef SIGFPE_DEBUG
+feenableexcept(FE_INVALID | FE_DIVBYZERO);
 #endif
 
 	QStringList args = char_array_to_stringlist(argv+1, argc-1);
diff --git a/retroshare-gui/src/retroshare-gui.pro b/retroshare-gui/src/retroshare-gui.pro
index 6b9d3c968..e617922ad 100644
--- a/retroshare-gui/src/retroshare-gui.pro
+++ b/retroshare-gui/src/retroshare-gui.pro
@@ -12,6 +12,7 @@ DEFINES += TARGET=\\\"$TARGET\\\"
 #
 #CONFIG += unfinished
 #CONFIG += debug
+#DEFINES *= SIGFPE_DEBUG
 
 #QMAKE_CFLAGS += -fmudflap 
 #LIBS *= /usr/lib/gcc/x86_64-linux-gnu/4.4/libmudflap.a /usr/lib/gcc/x86_64-linux-gnu/4.4/libmudflapth.a