diff --git a/docs/source/reference/modding/settings/GUI.rst b/docs/source/reference/modding/settings/GUI.rst
index 66eed6f1cc..76c83be4da 100644
--- a/docs/source/reference/modding/settings/GUI.rst
+++ b/docs/source/reference/modding/settings/GUI.rst
@@ -40,7 +40,7 @@ tooltip delay
 -------------
 
 :Type:		floating point
-:Range:		> 0.0
+:Range:		>= 0.0
 :Default:	0.0
 
 This value determines the number of seconds between when you begin hovering over an item and when its tooltip appears.