diff --git a/src/compiler.gleam b/src/compiler.gleam
index 9078d1c..746dada 100644
--- a/src/compiler.gleam
+++ b/src/compiler.gleam
@@ -16,6 +16,6 @@ pub fn parse(contents: String) -> Result(glance.Module, String) {
 pub fn compile(module_contents: String) -> Result(String, String) {
   module_contents
   |> parse
-  |> result.try(transformer.transform)
-  |> result.try(generator.generate)
+  |> result.map(transformer.transform)
+  |> result.map(generator.generate)
 }
diff --git a/src/compiler/generator.gleam b/src/compiler/generator.gleam
index 99288ec..96dd69d 100644
--- a/src/compiler/generator.gleam
+++ b/src/compiler/generator.gleam
@@ -6,7 +6,7 @@ import compiler/python
 import gleam/string_builder
 import python_prelude
 
-pub fn generate(module: python.Module) -> Result(String, String) {
+pub fn generate(module: python.Module) -> String {
   string_builder.new()
   |> string_builder.append(python_prelude.prelude)
   |> string_builder.append_builder(imports.generate_imports(module.imports))
@@ -21,5 +21,4 @@ pub fn generate(module: python.Module) -> Result(String, String) {
     "\n\n\n",
   ))
   |> string_builder.to_string
-  |> Ok
 }
diff --git a/src/compiler/transformer.gleam b/src/compiler/transformer.gleam
index 72309c7..6b188aa 100644
--- a/src/compiler/transformer.gleam
+++ b/src/compiler/transformer.gleam
@@ -6,14 +6,12 @@ import glance
 import gleam/list
 import gleam/option
 import gleam/string
-import pprint
 
-pub fn transform(input: glance.Module) -> Result(python.Module, String) {
+pub fn transform(input: glance.Module) -> python.Module {
   python.empty_module()
   |> list.fold(input.imports, _, transform_import)
   |> list.fold(input.functions, _, transform_function_or_external)
   |> list.fold(input.custom_types, _, transform_custom_type_in_module)
-  |> Ok
 }
 
 fn transform_function_or_external(
diff --git a/src/macabre.gleam b/src/macabre.gleam
index 8e2d61d..3280481 100644
--- a/src/macabre.gleam
+++ b/src/macabre.gleam
@@ -13,7 +13,13 @@ pub fn usage(message: String) -> Nil {
 pub fn compile_module(filename: String) -> Result(Nil, String) {
   simplifile.read(filename)
   |> result.replace_error("Unable to read '" <> filename <> "'")
-  |> result.try(compiler.compile)
+  |> result.try(fn(content) {
+    content
+    |> compiler.compile
+    |> result.map_error(fn(error) {
+      "Unable to compile " <> filename <> ":\n    " <> error
+    })
+  })
   |> result.try(output.write(_, output.replace_extension(filename)))
   |> result.try(fn(_) {
     // TODO: eventually, this has to be output to a base directory,