diff --git a/src/caoscrawler/identifiable_adapters.py b/src/caoscrawler/identifiable_adapters.py
index 52e3bce58cbe1728cbd2f46113c26c7f018565fd..c6dfd06274c21c7c0ce794b934ad7d0ad867a54d 100644
--- a/src/caoscrawler/identifiable_adapters.py
+++ b/src/caoscrawler/identifiable_adapters.py
@@ -353,7 +353,7 @@ class IdentifiableAdapter(metaclass=ABCMeta):
                 # property
                 continue
 
-            options = [p.value for p in se.properties if p.name == prop.name]
+            options = [p.value for p in se.properties if p.name.lower() == prop.name.lower()]
             if len(options) == 0:
                 raise MissingIdentifyingProperty(
                     f"The following record is missing an identifying property:\n"