diff --git a/src/passes/into_crane.rs b/src/passes/into_crane.rs
index fd715c7..f9f215a 100644
--- a/src/passes/into_crane.rs
+++ b/src/passes/into_crane.rs
@@ -38,15 +38,13 @@ impl<Annotation> Program<Annotation> {
             Function::with_name_signature(UserFuncName::user(0, func_id.as_u32()), basic_signature);
         let mut variable_name_global_values = HashMap::new();
 
-        let mut idx = 0;
-        for interned_value in self.strings.drain() {
+        for (idx, interned_value) in self.strings.drain().enumerate() {
             let global_id = module.declare_data(
                 &format!("local-string-{}", idx),
                 Linkage::Local,
                 false,
                 false,
             )?;
-            idx += 1;
             let mut data_context = DataContext::new();
             data_context.set_align(8);
             data_context.define(interned_value.as_str().to_owned().into_boxed_str().into_boxed_bytes());