diff --git a/bam.lua b/bam.lua
index 8dbb3c0..82ebed9 100644
--- a/bam.lua
+++ b/bam.lua
@@ -22,7 +22,7 @@ end
 
 -- paths used when building.
 paths = {
-	build		= "build",
+	build		= ScriptArgs.build_dir or "build",
 	object 		= "obj",
 	examples 	= "examples"
 }