diff --git a/docs/layouts.md b/docs/layouts.md
index fb77028..4174110 100644
--- a/docs/layouts.md
+++ b/docs/layouts.md
@@ -146,6 +146,7 @@ Fields can be any of:
 - `%M` function or method name (requires `enableCallStack: true` on the category, see [configuration object](api.md))
 - `%C` class name (requires `enableCallStack: true` on the category, see [configuration object](api.md))
 - `%A` function or method name alias (requires `enableCallStack: true` on the category, see [configuration object](api.md))
+- `%F` fully qualified caller name (requires `enableCallStack: true` on the category, see [configuration object](api.md))
 - `%x{<tokenname>}` add dynamic tokens to your log. Tokens are specified in the tokens parameter.
 - `%X{<tokenname>}` add values from the Logger context. Tokens are keys into the context values.
 - `%[` start a coloured block (colour will be taken from the log level, similar to `colouredLayout`)
diff --git a/lib/layouts.js b/lib/layouts.js
index f9d99e5..2c01d96 100644
--- a/lib/layouts.js
+++ b/lib/layouts.js
@@ -112,6 +112,7 @@ function dummyLayout(loggingEvent) {
  *  - %M method or function name
  *  - %C class name
  *  - %A method or function name
+ *  - %F fully qualified caller name
  *  - %x{<tokenname>} add dynamic tokens to your log. Tokens are specified in the tokens parameter
  *  - %X{<tokenname>} add dynamic tokens to your log. Tokens are specified in logger context
  * You can use %[ and %] to define a colored block.