diff --git a/Util/InputFileUtil.h b/Util/InputFileUtil.h
index 70026a758..8be578107 100644
--- a/Util/InputFileUtil.h
+++ b/Util/InputFileUtil.h
@@ -22,6 +22,7 @@ or see http://www.gnu.org/licenses/agpl.txt.
 #define INPUTFILEUTIL_H_
 
 #include <fstream>
+#include <iostream>
 
 // Check if file exists and if it can be opened for reading with ifstream an object
 bool testDataFile(const char *filename){