diff --git a/lib/cli/repositoryobjectcommand.cpp b/lib/cli/repositoryobjectcommand.cpp
index 9cb99d077..65e1b2b11 100644
--- a/lib/cli/repositoryobjectcommand.cpp
+++ b/lib/cli/repositoryobjectcommand.cpp
@@ -27,6 +27,7 @@
 #include <boost/algorithm/string/split.hpp>
 #include <boost/algorithm/string/classification.hpp>
 #include <fstream>
+#include <iostream>
 
 using namespace icinga;
 namespace po = boost::program_options;