diff --git a/src/gui/components/cc_timer.h b/src/gui/components/cc_timer.h
index 82bfbb683..72833bafc 100644
--- a/src/gui/components/cc_timer.h
+++ b/src/gui/components/cc_timer.h
@@ -33,6 +33,7 @@
 #include <sigc++/adaptors/retype_return.h>
 #include <thread>
 #include <mutex>
+#include <string>
 
 /**CComponentsTimer
 * 	Member of CComponents. Provides a generic timer class