diff --git a/src/plugins/cpptools/refactoringengineinterface.h b/src/plugins/cpptools/refactoringengineinterface.h
index 84ecf501abf..fa9435bf77a 100644
--- a/src/plugins/cpptools/refactoringengineinterface.h
+++ b/src/plugins/cpptools/refactoringengineinterface.h
@@ -31,7 +31,6 @@
 
 #include <utils/link.h>
 #include <utils/fileutils.h>
-#include <utils/smallstring.h>
 
 #include <clangsupport/sourcelocationscontainer.h>
 #include <clangsupport/refactoringclientinterface.h>