diff --git a/examples/rule110.mcl b/examples/rule110.mcl
index 8d10732..ae869cb 100755
--- a/examples/rule110.mcl
+++ b/examples/rule110.mcl
@@ -3,14 +3,14 @@ mem 98 + 1 @8
 0 while dup 98 < do
    0 while dup 100 < do
       dup mem + !8 if
-         dup mem + 100 + 42 @8
+         dup mem + 100 + "*" @8
       else
-         dup mem + 100 + 32 @8
+         dup mem + 100 + " " @8
       end
       1 +
    end
    
-   mem + 100 + 10 @8
+   mem + 100 + "\n" @8
 
    101 mem 100 + 1 1 syscall3 drop
 
diff --git a/src/compile/commands.rs b/src/compile/commands.rs
index f2c9847..d2f2785 100644
--- a/src/compile/commands.rs
+++ b/src/compile/commands.rs
@@ -60,14 +60,14 @@ pub fn linux_x86_64_compile_and_link(of_a: &PathBuf, of_o: &PathBuf, of_c: &Path
     Ok(())
 }
 
-pub fn linux_x86_64_run(_bin: &PathBuf, args: Vec<String>, quiet: bool) -> Result<()> {
+pub fn linux_x86_64_run(_bin: &PathBuf, args: Vec<String>, quiet: bool) -> Result<i32> {
 
     let bin = PathBuf::from(
         format!("./{}", _bin.to_string_lossy())
     );
 
     let mut proc = if cfg!(target_os = "windows") {
-        return Ok(());
+        return Ok(0);
     } else {
         Command::new(bin)
                 .args(&args)
@@ -84,5 +84,5 @@ pub fn linux_x86_64_run(_bin: &PathBuf, args: Vec<String>, quiet: bool) -> Resul
         logger::info(format!("{} process exited with code {}", _bin.to_string_lossy(), exit).as_str());
     }
 
-    Ok(())
+    Ok(exit.code().unwrap_or(0))
 }
\ No newline at end of file