diff --git a/examples/false-interpreter/Context.roc b/examples/false-interpreter/Context.roc
index dc12f5846d..a56beb4c16 100644
--- a/examples/false-interpreter/Context.roc
+++ b/examples/false-interpreter/Context.roc
@@ -82,8 +82,7 @@ getCharScope = \scope ->
         Err OutOfBounds -> 
             when scope.data is
                 Some h ->
-                    chunk <- Task.await (File.chunk h)
-                    bytes = Str.toUtf8 chunk 
+                    bytes <- Task.await (File.chunk h)
                     when List.first bytes is
                         Ok val ->
                             # This starts at 1 because the first charater is already being returned.
diff --git a/examples/false-interpreter/platform/File.roc b/examples/false-interpreter/platform/File.roc
index 9cb1d3a5e0..e42a599e21 100644
--- a/examples/false-interpreter/platform/File.roc
+++ b/examples/false-interpreter/platform/File.roc
@@ -7,7 +7,7 @@ Handle: [ @Handle U64 ]
 line : Handle -> Task.Task Str *
 line = \@Handle handle -> Effect.after (Effect.getFileLine handle) Task.succeed
 
-chunk : Handle -> Task.Task Str *
+chunk : Handle -> Task.Task (List U8) *
 chunk = \@Handle handle -> Effect.after (Effect.getFileBytes handle) Task.succeed
 
 open : Str -> Task.Task Handle *
diff --git a/examples/false-interpreter/platform/Package-Config.roc b/examples/false-interpreter/platform/Package-Config.roc
index f320deb294..0d00b4c0ed 100644
--- a/examples/false-interpreter/platform/Package-Config.roc
+++ b/examples/false-interpreter/platform/Package-Config.roc
@@ -10,7 +10,7 @@ platform examples/cli
             closeFile : U64 -> Effect {},
             withFileOpen : Str, (U64 -> Effect (Result ok err)) -> Effect {},
             getFileLine : U64 -> Effect Str,
-            getFileBytes : U64 -> Effect Str,
+            getFileBytes : U64 -> Effect (List U8),
             putLine : Str -> Effect {},
             putRaw : Str -> Effect {},
             # Is there a limit to the number of effect, uncomment the next line and it crashes
diff --git a/examples/false-interpreter/platform/src/lib.rs b/examples/false-interpreter/platform/src/lib.rs
index fc4d1f2635..3704bbff4c 100644
--- a/examples/false-interpreter/platform/src/lib.rs
+++ b/examples/false-interpreter/platform/src/lib.rs
@@ -171,7 +171,7 @@ pub fn roc_fx_getFileLine(br_ptr: *mut BufReader<File>) -> RocStr {
 }
 
 #[no_mangle]
-pub fn roc_fx_getFileBytes(br_ptr: *mut BufReader<File>) -> RocStr {
+pub fn roc_fx_getFileBytes(br_ptr: *mut BufReader<File>) -> RocList<u8> {
     let br = unsafe { &mut *br_ptr };
     let mut buffer = [0; 0x10 /* This is intentially small to ensure correct implementation */];
 
@@ -179,7 +179,7 @@ pub fn roc_fx_getFileBytes(br_ptr: *mut BufReader<File>) -> RocStr {
         .read(&mut buffer[..])
         .expect("Failed to read bytes from file");
 
-    RocStr::from_slice(&buffer[..count])
+    RocList::from_slice(&buffer[..count])
 }
 
 #[no_mangle]