diff --git a/capa/rules/__init__.py b/capa/rules/__init__.py
index 09649d015..04ea11bd2 100644
--- a/capa/rules/__init__.py
+++ b/capa/rules/__init__.py
@@ -164,7 +164,10 @@ def from_dict(self, scopes: Dict[str, str]) -> "Scopes":
         if scopes_["dynamic"] and scopes_["dynamic"] not in DYNAMIC_SCOPES:
             raise InvalidRule(f"{scopes_['dynamic']} is not a valid dynamic scope")
 
-        return Scopes(static=Scope(scopes_["static"]), dynamic=Scope(scopes_["dynamic"]))
+        return Scopes(
+            static=Scope(scopes_["static"]) if scopes_["static"] else None,
+            dynamic=Scope(scopes_["dynamic"]) if scopes_["dynamic"] else None,
+        )
 
 
 SUPPORTED_FEATURES: Dict[str, Set] = {