diff --git a/fuzz/fuzz_targets/compile.rs b/fuzz/fuzz_targets/compile.rs
index 684d75637a..10036f3481 100644
--- a/fuzz/fuzz_targets/compile.rs
+++ b/fuzz/fuzz_targets/compile.rs
@@ -1,10 +1,21 @@
 #![no_main]
 
 use libfuzzer_sys::fuzz_target;
-use wasmtime::{Engine, Module};
+use wasmtime::{Config, Engine, Module};
+
+fn create_engine() -> Engine {
+    let mut config = Config::default();
+    // Safety: the Cranelift option `regalloc_checker` does not alter
+    // the generated code at all; it only does extra checking after
+    // compilation.
+    unsafe {
+        config.cranelift_flag_enable("regalloc_checker").unwrap();
+    }
+    Engine::new(&config).expect("Could not construct Engine")
+}
 
 fuzz_target!(|data: &[u8]| {
-    let engine = Engine::default();
+    let engine = create_engine();
     wasmtime_fuzzing::oracles::log_wasm(data);
     drop(Module::new(&engine, data));
 });