diff --git a/lang/python/python-package.mk b/lang/python/python-package.mk
index c594f614e..4cb3dbbd8 100644
--- a/lang/python/python-package.mk
+++ b/lang/python/python-package.mk
@@ -40,7 +40,11 @@ define PyPackage
   define Package/$(1)-src
     $(call Package/$(1))
     DEPENDS:=
+    CONFLICTS:=
+    PROVIDES:=
+    EXTRA_DEPENDS:=
     TITLE+= (sources)
+    USERID:=
   endef
 
   define Package/$(1)-src/description
diff --git a/lang/python/python3-package.mk b/lang/python/python3-package.mk
index 4a3dddd64..e38bbf67e 100644
--- a/lang/python/python3-package.mk
+++ b/lang/python/python3-package.mk
@@ -39,7 +39,11 @@ define Py3Package
   define Package/$(1)-src
     $(call Package/$(1))
     DEPENDS:=
+    CONFLICTS:=
+    PROVIDES:=
+    EXTRA_DEPENDS:=
     TITLE+= (sources)
+    USERID:=
   endef
 
   define Package/$(1)-src/description