diff --git a/cargo-miri/bin.rs b/cargo-miri/bin.rs
index 295acd6638..7836b26ea5 100644
--- a/cargo-miri/bin.rs
+++ b/cargo-miri/bin.rs
@@ -900,10 +900,17 @@ fn phase_rustdoc(fst_arg: &str, mut args: env::Args) {
     }
 
     if crossmode {
-        show_error(format!("cross-interpreting doc-tests is not currently supported by Miri."));
+        show_error(format!("cross-interpreting doctests is not currently supported by Miri."));
     }
 
-    // For each doc-test, rustdoc starts two child processes: first the test is compiled,
+    // Doctests of `proc-macro` crates (and their dependencies) are always built for the host,
+    // so we are not able to run them in Miri.
+    if ArgFlagValueIter::new("--crate-type").any(|crate_type| crate_type == "proc-macro") {
+        eprintln!("Running doctests of `proc-macro` crates is not currently supported by Miri.");
+        return;
+    }
+
+    // For each doctest, rustdoc starts two child processes: first the test is compiled,
     // then the produced executable is invoked. We want to reroute both of these to cargo-miri,
     // such that the first time we'll enter phase_cargo_rustc, and phase_cargo_runner second.
     //
diff --git a/test-cargo-miri/run-test.py b/test-cargo-miri/run-test.py
index 9185c2507b..c850e7d145 100755
--- a/test-cargo-miri/run-test.py
+++ b/test-cargo-miri/run-test.py
@@ -140,6 +140,10 @@ def test_cargo_miri_test():
         "test.subcrate.stdout.ref", "test.stderr-proc-macro.ref",
         env={'MIRIFLAGS': "-Zmiri-disable-isolation"},
     )
+    test("`cargo miri test` (subcrate, doctests)",
+        cargo_miri("test") + ["-p", "subcrate", "--doc"],
+        "test.stdout-empty.ref", "test.stderr-proc-macro-doctest.ref",
+    )
 
 os.chdir(os.path.dirname(os.path.realpath(__file__)))
 os.environ["RUST_TEST_NOCAPTURE"] = "0" # this affects test output, so make sure it is not set
diff --git a/test-cargo-miri/subcrate/src/lib.rs b/test-cargo-miri/subcrate/src/lib.rs
index 706e368017..2ccb6704b0 100644
--- a/test-cargo-miri/subcrate/src/lib.rs
+++ b/test-cargo-miri/subcrate/src/lib.rs
@@ -1,2 +1,5 @@
+#[cfg(doctest)]
+compile_error!("rustdoc should not touch me");
+
 #[cfg(test)]
 compile_error!("Miri should not touch me");
diff --git a/test-cargo-miri/test.stderr-proc-macro-doctest.ref b/test-cargo-miri/test.stderr-proc-macro-doctest.ref
new file mode 100644
index 0000000000..ca5e3a2392
--- /dev/null
+++ b/test-cargo-miri/test.stderr-proc-macro-doctest.ref
@@ -0,0 +1 @@
+Running doctests of `proc-macro` crates is not currently supported by Miri.
diff --git a/test-cargo-miri/test.stdout-empty.ref b/test-cargo-miri/test.stdout-empty.ref
new file mode 100644
index 0000000000..e69de29bb2