1 files changed, 12 insertions, 4 deletions
diff --git a/utils.py b/utils.py
index 06c6500..bc47d8f 100644
--- a/utils.py
+++ b/utils.py
@@ -32,14 +32,22 @@ def write_facts(ruleset: set):
         os.mkdir(typedir)
 
         fs = []
-        for f in facts:
-            if f["type"] != t:
+        for fact in facts:
+            if fact["type"] != t:
                 continue
+
+            if fact["type"] == "meta":
+                continue
+
+            if fact.get("key") is None:
+                raise Exception(f"Bad fact: no 'key' {fact}")
+
             try:
-                del f["sid"]
+                del fact["sid"]
             except KeyError:
                 pass
-            fs.append(f)
+
+            fs.append(fact)
 
         i = 0
         for fact in sorted(fs, key=lambda f: f["key"]):