diff --git a/clang/docs/AttributeReference.rst b/clang/docs/AttributeReference.rst
index c12f6d8e1eae..d28cee25799c 100644
--- a/clang/docs/AttributeReference.rst
+++ b/clang/docs/AttributeReference.rst
@@ -236,6 +236,11 @@ enable_if
 
    "X","","",""
 
+.. Note:: Some features of this attribute are experimental. The meaning of
+multiple enable_if attributes on a single declaration is subject to change in
+a future version of clang. Also, the ABI is not standardized and the mangled
+name produced may change. To avoid that, use asm labels.
+
 The ``enable_if`` attribute can be placed on function declarations to control
 which overload is selected based on the values of the function's arguments.
 When combined with the ``overloadable`` attribute, this feature is also