diff --git a/common.py b/common.py
index be4b42b..0fb460a 100644
--- a/common.py
+++ b/common.py
@@ -702,7 +702,7 @@ Incompatible archs are skipped.
 
         # gem5
         if not env['_args_given']['gem5_build_dir']:
-            env['gem5_build_dir'] = join(env['gem5_out_dir'], env['gem5_build_id'], env['gem5_build_type'])
+            env['gem5_build_dir'] = join(env['gem5_out_dir'], env['gem5_build_id'])
         env['gem5_fake_iso'] = join(env['gem5_out_dir'], 'fake.iso')
         env['gem5_m5term'] = join(env['gem5_build_dir'], 'm5term')
         env['gem5_build_build_dir'] = join(env['gem5_build_dir'], 'build')