diff --git a/modules/gui/src/python_shell/python_shell_widget.hh b/modules/gui/src/python_shell/python_shell_widget.hh
index d55f8c3c3f1147c761c8b718ba667dc11e6aa111..1b8157011daa104b4a7a716f9619283ed7076560 100644
--- a/modules/gui/src/python_shell/python_shell_widget.hh
+++ b/modules/gui/src/python_shell/python_shell_widget.hh
@@ -27,7 +27,7 @@
 
 #include <ost/gui/module_config.hh>
 #include <QPlainTextEdit>
-
+#include <QHash>
 #include "python_interpreter.hh"
 #include "shell_history.hh"
 #include  "python_shell_fw.hh"