diff --git a/implot.h b/implot.h
index be9c098..ec8bcb3 100644
--- a/implot.h
+++ b/implot.h
@@ -225,7 +225,4 @@ void PopPlotStyleVar(int count = 1);
 // Shows the ImPlot demo. Add implot_demo.cpp to your sources!
 void ShowImPlotDemoWindow(bool* p_open = NULL);
 
-// Shows the ImPlot benchmarking test. Add implot_demo.cpp to your sources!
-void ShowImPlotBenchmarkWindow(bool * p_open = NULL);
-
-}  // namespace ImGui
\ No newline at end of file
+}  // namespace ImGui