diff --git a/.gitignore b/.gitignore
index 6027263..ccc8fe3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ gnuplotscript.gp
 *.lo
 *.o
 *.obj
+*.bin
 
 # Precompiled Headers
 *.gch
diff --git a/control/examples/pegel/main.cpp b/control/examples/pegel/main.cpp
index 4370320..e3eb666 100644
--- a/control/examples/pegel/main.cpp
+++ b/control/examples/pegel/main.cpp
@@ -3,6 +3,7 @@
 #include <b15f/b15f.h>
 #include <b15f/plottyfile.h>
 
+constexpr char * PLOT_FILE = "plot.bin";
 
 int main()
 {
@@ -41,6 +42,6 @@ int main()
     }
     
 	// speichern und plotty starten
-	pf.writeToFile("test_plot");	
-	pf.startPlotty("test_plot");
+	pf.writeToFile(PLOT_FILE);	
+	pf.startPlotty(PLOT_FILE);
 }
diff --git a/control/examples/pegel/test_plot b/control/examples/pegel/test_plot
deleted file mode 100644
index 908f0cb..0000000
Binary files a/control/examples/pegel/test_plot and /dev/null differ