diff --git a/docs/compiler.md b/docs/compiler.md
index b53a92a65..3dc2d52b7 100644
--- a/docs/compiler.md
+++ b/docs/compiler.md
@@ -22,7 +22,8 @@ a dialect of Go rather than a complete port of the language:
  * `defer` and `recover` are supported except for cases where panic occurs in
    `return` statement, because this complicates implementation and imposes runtime
     overhead for all contracts. This can easily be mitigated by first storing values
-    in variables and returning the result.
+    in variables and returning the result. `defer` can't be used in
+    conditional code (#2293).
  * lambdas are supported, but closures are not.
  * maps are supported, but valid map keys are booleans, integers and strings with length <= 64