diff --git a/fuzz/.gitignore b/fuzz/.gitignore
new file mode 100644
index 00000000..188f1960
--- /dev/null
+++ b/fuzz/.gitignore
@@ -0,0 +1,3 @@
+artifacts/
+corpus/
+target/
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 00000000..0923993d
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+name = "proc-macro2-fuzz"
+version = "0.0.0"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+edition = "2021"
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+proc-macro2 = { path = ".." }
+
+[[bin]]
+name = "parse_token_stream"
+path = "fuzz_targets/parse_token_stream.rs"
+test = false
+doc = false
+
+[workspace]
diff --git a/fuzz/fuzz_targets/parse_token_stream.rs b/fuzz/fuzz_targets/parse_token_stream.rs
new file mode 100644
index 00000000..5b73e1b2
--- /dev/null
+++ b/fuzz/fuzz_targets/parse_token_stream.rs
@@ -0,0 +1,12 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use std::str;
+
+fuzz_target!(|bytes: &[u8]| {
+    if bytes.len() < 200 {
+        if let Ok(string) = str::from_utf8(bytes) {
+            _ = string.parse::<proc_macro2::TokenStream>();
+        }
+    }
+});