diff --git a/src/iterator.c b/src/iterator.c
index c4683cb658cc42f749feb11d7c570394d0ab1252..5dd75c938872d0681aa0de527eedffbc0f4527e0 100644
--- a/src/iterator.c
+++ b/src/iterator.c
@@ -904,7 +904,6 @@ int cdiIterator_inqDatatype(CdiIterator* me)
 */
 int cdiIterator_inqFiletype(CdiIterator* me)
 {
-  sanityCheck(me);
   return me->filetype;
 }