diff --git a/resources/profiles/QIDITechnology.ini b/resources/profiles/QIDITechnology.ini
index 81e9ab5..9629a3c 100644
--- a/resources/profiles/QIDITechnology.ini
+++ b/resources/profiles/QIDITechnology.ini
@@ -1988,7 +1988,7 @@ auxiliary_fan = 1
 bed_shape = 0x0,325x0,325x325,0x325
 chamber_temperature = 1
 max_print_height = 315
-thumbnails = 380x380/QIDI, 210x210/QIDI, 110X110/PNG
+thumbnails = 380x380/QIDI, 210x210/QIDI, 110x110/PNG
 
 [printer:X-MAX 3 0.2 nozzle]
 inherits = *X-MAX 3*
@@ -2034,7 +2034,7 @@ auxiliary_fan = 1
 bed_shape = 0x0,280x0,280x280,0x280
 chamber_temperature = 1
 max_print_height = 270
-thumbnails = 380x380/QIDI, 210x210/QIDI, 110X110/PNG
+thumbnails = 380x380/QIDI, 210x210/QIDI, 110x110/PNG
 
 [printer:X-Plus 3 0.2 nozzle]
 inherits = *X-Plus 3*
@@ -2078,7 +2078,7 @@ inherits = *common*
 printer_model = X-smart 3
 bed_shape = 0x0,175x0,175x180,0x180
 max_print_height = 170
-thumbnails = 205x205/QIDI, 140x140/QIDI, 110X110/PNG
+thumbnails = 205x205/QIDI, 140x140/QIDI, 110x110/PNG
 
 [printer:X-smart 3 0.2 nozzle]
 inherits = *X-smart 3*