diff --git a/src/bin/rhai-run.rs b/src/bin/rhai-run.rs
index e87e99b4..e44a3b7f 100644
--- a/src/bin/rhai-run.rs
+++ b/src/bin/rhai-run.rs
@@ -50,6 +50,8 @@ fn main() {
         // Initialize scripting engine
         let mut engine = Engine::new();
 
+        engine.set_fast_operators(true);
+
         #[cfg(not(feature = "no_optimize"))]
         engine.set_optimization_level(rhai::OptimizationLevel::Simple);
 
diff --git a/src/eval/expr.rs b/src/eval/expr.rs
index 661534a7..48f870a4 100644
--- a/src/eval/expr.rs
+++ b/src/eval/expr.rs
@@ -228,6 +228,7 @@ impl Engine {
             ..
         } = expr;
 
+        // Short-circuit operator call if under Fast Operators mode
         if *std_ops && self.fast_operators() {
             let mut lhs = self
                 .get_arg_value(scope, global, caches, lib, this_ptr, &args[0], level)?