diff --git a/src/obiview.c b/src/obiview.c
index 5aa2212..3a09e4c 100755
--- a/src/obiview.c
+++ b/src/obiview.c
@@ -1407,7 +1407,7 @@ static char* view_check_qual_match_seqs(Obiview_p view)
 						// Test that the lengths of the quality and the sequence are equal
 						if ((size_t)qual_len != strlen(seq))
 						{
-							obidebug(1, "\nError checking the predicate for view %s: The sequences and sequence quality arrays match.", (view->infos)->name);
+							obidebug(1, "\nError checking the predicate for view %s: The sequences and sequence quality arrays match (index %lld, seq=%s, quality length = %d).", (view->infos)->name, j, seq, qual_len);
 							return NULL;
 						}
 					}