diff --git a/docs/UndefinedBehaviorSanitizer.rst b/docs/UndefinedBehaviorSanitizer.rst
index d6fdad2a0c0118ae70e820b2771ab3e295aa4f49..9bec5506359ff93a38b3468e2dbf02a3f5e058a8 100644
--- a/docs/UndefinedBehaviorSanitizer.rst
+++ b/docs/UndefinedBehaviorSanitizer.rst
@@ -157,6 +157,8 @@ will need to:
    ``UBSAN_OPTIONS=print_stacktrace=1``.
 #. Make sure ``llvm-symbolizer`` binary is in ``PATH``.
 
+Stacktrace printing for UBSan issues is currently not supported on Darwin.
+
 Issue Suppression
 =================