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-rw-r--r--src/uscxml/messages/MMIMessages.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/uscxml/messages/MMIMessages.h b/src/uscxml/messages/MMIMessages.h
index 4f3947e..3538816 100644
--- a/src/uscxml/messages/MMIMessages.h
+++ b/src/uscxml/messages/MMIMessages.h
@@ -22,6 +22,7 @@
#define MMI_WITH_OPERATOR_EVENT 1
+#include <iostream>
#include <DOM/Node.hpp>
#include <DOM/Document.hpp>
#include <uscxml/Interpreter.h>