diff --git a/include/libcamera/stream.h b/include/libcamera/stream.h
index 24407cb65361..970c479627fa 100644
--- a/include/libcamera/stream.h
+++ b/include/libcamera/stream.h
@@ -29,7 +29,7 @@ public:
 	const StreamConfiguration &configuration() const { return configuration_; }

 private:
-	friend Camera;
+	friend class Camera;

 	BufferPool bufferPool_;
 	StreamConfiguration configuration_;