diff --git a/src/plugins/projectexplorer/iprojectmanager.h b/src/plugins/projectexplorer/iprojectmanager.h
index 3b7cd301b9c..88be1a45090 100644
--- a/src/plugins/projectexplorer/iprojectmanager.h
+++ b/src/plugins/projectexplorer/iprojectmanager.h
@@ -34,9 +34,6 @@
 
 #include <QObject>
 
-namespace Core {
-class Context;
-}
 namespace ProjectExplorer {
 
 class Project;