diff --git a/crates/wasm_interp/src/main.rs b/crates/wasm_interp/src/main.rs
index 57aa788daa..049a018416 100644
--- a/crates/wasm_interp/src/main.rs
+++ b/crates/wasm_interp/src/main.rs
@@ -1,11 +1,9 @@
 use bumpalo::{collections::Vec, Bump};
 use clap::ArgAction;
 use clap::{Arg, Command};
-use std::ffi::OsString;
 use std::fs;
 use std::io;
 use std::iter::once;
-use std::os::unix::prelude::OsStrExt;
 use std::process;
 
 use roc_wasm_interp::{DefaultImportDispatcher, Instance};
@@ -64,10 +62,8 @@ fn main() -> io::Result<()> {
     let start_fn_name = matches.get_one::<String>(FLAG_FUNCTION).unwrap();
     let is_debug_mode = matches.get_flag(FLAG_DEBUG);
     let is_hex_format = matches.get_flag(FLAG_HEX);
-    let start_arg_strings = matches
-        .get_many::<OsString>(ARGS_FOR_APP)
-        .unwrap_or_default();
-    let wasm_path = matches.get_one::<OsString>(WASM_FILE).unwrap();
+    let start_arg_strings = matches.get_many::<String>(ARGS_FOR_APP).unwrap_or_default();
+    let wasm_path = matches.get_one::<String>(WASM_FILE).unwrap();
     // WASI expects the .wasm file to be argv[0]
     let wasi_argv_iter = once(wasm_path)
         .chain(start_arg_strings)