diff --git a/src/test/rustdoc-ui/doc-test-rustdoc-feature.rs b/src/test/rustdoc-ui/doc-test-rustdoc-feature.rs
new file mode 100644
index 00000000000..d0ead413657
--- /dev/null
+++ b/src/test/rustdoc-ui/doc-test-rustdoc-feature.rs
@@ -0,0 +1,14 @@
+// build-pass
+// compile-flags:--test
+// normalize-stdout-test: "src/test/rustdoc-ui" -> "$$DIR"
+
+#![feature(doc_cfg)]
+
+// Make sure `cfg(rustdoc)` is set when finding doctests but not inside the doctests.
+
+/// ```
+/// #![feature(doc_cfg)]
+/// assert!(!cfg!(rustdoc));
+/// ```
+#[cfg(rustdoc)]
+pub struct Foo;
diff --git a/src/test/rustdoc-ui/doc-test-rustdoc-feature.stdout b/src/test/rustdoc-ui/doc-test-rustdoc-feature.stdout
new file mode 100644
index 00000000000..f2525c2dbec
--- /dev/null
+++ b/src/test/rustdoc-ui/doc-test-rustdoc-feature.stdout
@@ -0,0 +1,6 @@
+
+running 1 test
+test $DIR/doc-test-rustdoc-feature.rs - Foo (line 9) ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
+