diff --git a/.gitmodules b/.gitmodules
index e307b6b3..8fc9c18d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,9 +1,9 @@
-[submodule "diffusion-policy"]
-	path = src/diffusion-policy
-	url = https://github.com/real-stanford/diffusion_policy.git
-	commit = 5ba07ac6661db573af695b419a7947ecb704690f
 [submodule "internnav/model/basemodel/LongCLIP"]
 	path = internnav/model/basemodel/LongCLIP
 	url = https://github.com/beichenzbc/Long-CLIP
 	commit = 3966af9ae9331666309a22128468b734db4672a7
 	ignore = untracked
+[submodule "third_party/diffusion-policy"]
+	path = third_party/diffusion-policy
+	url = https://github.com/real-stanford/diffusion_policy.git
+	commit = 5ba07ac6661db573af695b419a7947ecb704690f
diff --git a/scripts/eval/eval.py b/scripts/eval/eval.py
index 4c17026f..eb6c17df 100644
--- a/scripts/eval/eval.py
+++ b/scripts/eval/eval.py
@@ -1,6 +1,7 @@
 import sys
 
 sys.path.append('.')
+sys.path.append('./third_party/diffusion-policy')
 
 import argparse
 import importlib.util
diff --git a/scripts/eval/start_server.py b/scripts/eval/start_server.py
index 60e60070..11a3136f 100644
--- a/scripts/eval/start_server.py
+++ b/scripts/eval/start_server.py
@@ -2,7 +2,7 @@
 import sys
 
 sys.path.append('.')
-sys.path.append('./src/diffusion-policy')
+sys.path.append('./third_party/diffusion-policy')
 
 import argparse
 import importlib
diff --git a/src/diffusion-policy b/third_party/diffusion-policy
similarity index 100%
rename from src/diffusion-policy
rename to third_party/diffusion-policy