diff --git a/manual/en/basic-mapping.txt b/manual/en/basic-mapping.txt
index 8e333dc58..7a1359ccc 100644
--- a/manual/en/basic-mapping.txt
+++ b/manual/en/basic-mapping.txt
@@ -315,3 +315,6 @@ Doctrine will then quote this column name in all SQL statements according to the
 > **CAUTION**
 > Identifier Quoting is a feature that is mainly intended to support legacy database
 > schemas. The use of reserved words and identifier quoting is generally discouraged.
+> Identifier quoting should not be used to enable the use non-standard-characters such
+> as a dash in a hypothetical column `test-name`. Also Schema-Tool will likely have
+> troubles when quoting is used for case-sensitivity reasons (in Oracle for example).
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