1 files changed, 2 insertions, 1 deletions
diff --git a/src/fluid_buffer.h b/src/fluid_buffer.h
index 1d802c0..72518bb 100644
--- a/src/fluid_buffer.h
+++ b/src/fluid_buffer.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <memory>
+#include <string>
 
 #include "vector.h"
 
@@ -27,5 +28,5 @@ public:
 	Velocity& velocity(std::size_t x, std::size_t y);
 	Velocity& velocity(Vector<std::size_t> pos);
 
-	void writeAsVTK(int time);
+	void writeAsVTK(const std::string& path);
 };