diff --git a/ion/src/device/bench/command/display.cpp b/ion/src/device/bench/command/display.cpp
index 224c83d47..872a763a2 100644
--- a/ion/src/device/bench/command/display.cpp
+++ b/ion/src/device/bench/command/display.cpp
@@ -64,7 +64,7 @@ void Display(const char * input) {
   }
 
   char response[16] = {'D', 'E', 'L', 'T', 'A', '='};
-  Poincare::Integer(numberOfInvalidPixels).writeTextInBuffer(response+6, sizeof(response)-6);
+  Poincare::Integer(numberOfInvalidPixels).serialize(response+6, sizeof(response)-6);
   reply(response);
 }