diff --git a/src/pdl/pdl_schema_error_analyzer.py b/src/pdl/pdl_schema_error_analyzer.py
index 9d797017d..96a7f6129 100644
--- a/src/pdl/pdl_schema_error_analyzer.py
+++ b/src/pdl/pdl_schema_error_analyzer.py
@@ -48,7 +48,7 @@ def get_non_null_type(schema):
 
 
 def match(ref_type, data):
-    all_fields = ref_type["properties"].keys()
+    all_fields = ref_type.get("properties", {}).keys()
     intersection = list(set(data.keys()) & set(all_fields))
     return len(intersection)