diff --git a/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg b/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
index a3990bed..d1495afb 100644
--- a/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
+++ b/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
@@ -34,28 +34,28 @@
 #
 #     This is the inverse of "E steps" (extruder steps per mm) from the stock
 #     Wanhao Repetier-based firmware.
-# 	  (See https://3dprinterwiki.info/extruder-steps/ )
+#     (See https://3dprinterwiki.info/extruder-steps/ )
 #
-# 	  For example, if your E-steps are set to 107.0 steps per mm,
-# 	  then step_distance should be (1 / 107.0) ~= .009346
+#     For example, if your E-steps are set to 107.0 steps per mm,
+#     then step_distance should be (1 / 107.0) ~= .009346
 #
 #   * [extruder] > PID parameters (pid_Kp, pid_Ki, pid_Kd)
 #   * [heater_bed] > PID parameters (pid_Kp, pid_Ki, pid_Kd)
 #
 #     PID values from stock Wanhao firmware (Repetier) do not
 #     translate directly to klipper. You will need to run klipper's
-# 	  PID autotune function for the extruder and bed. After getting the
-# 	  klipper firmware up and running, run the M303 autotune procedures
-# 	  by sending these commands via octoprint terminal (one per autotune):
+#     PID autotune function for the extruder and bed. After getting the
+#     klipper firmware up and running, run the M303 autotune procedures
+#     by sending these commands via octoprint terminal (one per autotune):
 #
-# 	     extruder:   M303 E0 S<temp>
-# 		 heated bed: M303 E-1 S<temp>
+#        extruder:   M303 E0 S<temp>
+#        heated bed: M303 E-1 S<temp>
 #
-# 	  After the autotune process completes, PID parameter results
-# 	  can be found in the Octoprint terminal tab (if you're quick)
-# 	  or in /tmp/klippy.log.
+#     After the autotune process completes, PID parameter results
+#     can be found in the Octoprint terminal tab (if you're quick)
+#     or in /tmp/klippy.log.
 #
-# 	  Enter the PID parameters into the appropriate sections of ~/printer.cfg .
+#     Enter the PID parameters into the appropriate sections of ~/printer.cfg .
 #
 #   * [extruder] > max_temp
 #   * [heater_bed] > max_temp
@@ -68,7 +68,7 @@
 #   * [mcu] > serial
 #
 #     Enter the USB serial port of the printer in /dev/serial/by-id/ format
-# 	  for best results.
+#     for best results.
 #
 # - Power cycle the Wanhao Duplicator i3
 #