diff -bur premake-core-5.0.0-beta6-orig/src/base/oven.lua premake-core-5.0.0-beta6/src/base/oven.lua
--- premake-core-5.0.0-beta6-orig/src/base/oven.lua	2025-10-09 17:37:38.491740000 -0600
+++ premake-core-5.0.0-beta6/src/base/oven.lua	2025-10-09 17:37:42.317508600 -0600
@@ -874,7 +874,7 @@
 		-- assign human-readable names
 		cfg.longname = table.concat({ cfg.buildcfg, cfg.platform }, "|")
 		cfg.shortname = table.concat({ cfg.buildcfg, cfg.platform }, " ")
-		cfg.shortname = cfg.shortname:gsub(" ", "_"):lower()
+		cfg.shortname = cfg.shortname:gsub(" ", "_")
 		cfg.name = cfg.longname
 
 		-- compute build and link targets
