diff --git a/StaticData/SliceSettings/Properties.txt b/StaticData/SliceSettings/Properties.txt
index e4b9e1468..09b2eee31 100644
--- a/StaticData/SliceSettings/Properties.txt
+++ b/StaticData/SliceSettings/Properties.txt
@@ -115,7 +115,7 @@ thin_walls|Thin Walls|CHECK_BOX||Detect when walls are too close together and ne
 threads|Threads|INT||The number of CPU cores to use while doing slicing. Increasing this can slow down your machine.
 toolchange_gcode|Tool Change G-Code|MULTI_LINE_TEXT||This gcode will be inserted after every tool change.
 top_infill_extrusion_width|Top Solid Infill|DOUBLE_OR_PERCENT|mm or %\nleave 0 for default|Leave this as 0 to allow automatic calculation of extrusion width.
-top_solid_infill_speed|Top Solid Infill|POSITVE_DOUBLE|mm/s|The speed to print the top infill. This can be set explicitly or as a percentage of the Infill speed.
+top_solid_infill_speed|Top Solid Infill|DOUBLE_OR_PERCENT|mm/s|The speed to print the top infill. This can be set explicitly or as a percentage of the Infill speed.
 top_solid_layers|Number of Solid Layers\n on the Top:|INT||How many layers will be solid filled on the top surfaces of the object.
 travel_speed|Travel|POSITVE_DOUBLE|mm/s|Speed to move when not extruding material.
 use_firmware_retraction|Use Firmware Retraction|CHECK_BOX||Request the firmware to do retractions rather than specify the extruder movements directly.