diff --git a/api.lua b/api.lua
index 98c742a..aed85f4 100644
--- a/api.lua
+++ b/api.lua
@@ -112,9 +112,10 @@ API.unitguid = type(_G.UnitGUID) == "function"
 API.unittoken = type(_G.UnitTokenFromGUID) == "function"
 API.tooltipunit = _G.GameTooltip
   and type(_G.GameTooltip.GetUnitGUID) == "function"
--- OnTooltipSetUnit shipped in ClassicAPI v1.8.2. Tooltip Details uses this
--- native builder event directly instead of Vanilla OnShow/mouseover polling.
-API.tooltipsetunit = API.classicapi_version >= 10802
+-- OnTooltipSetUnit shipped in ClassicAPI v1.8.2, but its per-tooltip
+-- handler cells became reload-safe in v1.12.2. Require the fixed generation
+-- instead of falling back to Vanilla OnShow/mouseover polling.
+API.tooltipsetunit = API.classicapi_version >= 11202
   and API.tooltipunit and API.unittoken
 API.unitrange = type(_G.UnitInRange) == "function"