diff --git a/python/tox.ini b/python/tox.ini
index eaa444646..33cfe1077 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -27,6 +27,13 @@ deps =
     pdbpp
     requests
 
+[testenv:.pkg]
+passenv =
+    DCC_RS_DEV
+    DCC_RS_TARGET
+    CARGO_TARGET_DIR
+    RUSTC_WRAPPER
+
 [testenv:auditwheels]
 skipsdist = True
 deps = auditwheel