diff --git a/crates/wasm-smith/src/config.rs b/crates/wasm-smith/src/config.rs
index 7ac513393c..f4d26dad67 100644
--- a/crates/wasm-smith/src/config.rs
+++ b/crates/wasm-smith/src/config.rs
@@ -746,7 +746,7 @@ define_config! {
         /// [wide-arithmetic proposal]: https://github.com/WebAssembly/wide-arithmetic
         ///
         /// Defaults to `false`.
-        pub wide_arithmetic_enabled: bool = false,
+        pub wide_arithmetic_enabled: bool = true,
 
         /// Determines whether the [extended-const proposal] is enabled.
         ///
diff --git a/crates/wasm-smith/tests/core.rs b/crates/wasm-smith/tests/core.rs
index 974423cee8..4713f08a78 100644
--- a/crates/wasm-smith/tests/core.rs
+++ b/crates/wasm-smith/tests/core.rs
@@ -239,6 +239,7 @@ fn smoke_can_smith_valid_webassembly_one_point_oh() {
         cfg.tail_call_enabled = false;
         cfg.threads_enabled = false;
         cfg.compact_imports_enabled = false;
+        cfg.wide_arithmetic_enabled = false;
         cfg.max_memories = 1;
         cfg.max_tables = 1;
         if let Ok(module) = Module::new(cfg, &mut u) {