diff --git a/packages/t/tracy/xmake.lua b/packages/t/tracy/xmake.lua
index 88d45d8f6..3ae18c288 100644
--- a/packages/t/tracy/xmake.lua
+++ b/packages/t/tracy/xmake.lua
@@ -70,8 +70,8 @@ package("tracy")
 
         -- collect tracy defines from cmake configs
         for _, config in ipairs(configs) do
-            local define = config:match("-D(TRACY_%S+)=")
-            if define then
+            local define, value = config:match("-D(TRACY_%S+)=(.*)")
+            if define and value and value == "ON" then
                 package:add("defines", define)
             end
         end