diff --git a/configs/ruby/GPU_VIPER.py b/configs/ruby/GPU_VIPER.py
index 967b4d3f98..50ccd2b259 100644
--- a/configs/ruby/GPU_VIPER.py
+++ b/configs/ruby/GPU_VIPER.py
@@ -37,6 +37,7 @@ from m5.defines import buildEnv
 from m5.util import addToPath
 from .Ruby import create_topology
 from .Ruby import send_evicts
+from common import FileSystemConfig
 
 addToPath('../')