diff --git a/src/hasp_gui.cpp b/src/hasp_gui.cpp
index 059680db..b762ffd9 100644
--- a/src/hasp_gui.cpp
+++ b/src/hasp_gui.cpp
@@ -170,6 +170,7 @@ bool read_encoder(lv_indev_drv_t * indev, lv_indev_data_t * data)
 
 void guiFirstCalibration()
 {
+    guiSetDim(100);
     dispatchCommand(F("calibrate"));
     guiAutoCalibrate = false;
     haspFirstSetup();