diff --git a/microsim/microsim.ui.h b/microsim/microsim.ui.h
index ffb870d..6ad96db 100755
--- a/microsim/microsim.ui.h
+++ b/microsim/microsim.ui.h
@@ -9,7 +9,7 @@
 ** These will automatically be called by the form's constructor and
 ** destructor.
 *****************************************************************************/
-
+#include <typeinfo>
 
 /* Initiates file open action */
 void MicroSim::fileOpen()