2 files changed, 4 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriter.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriter.java
index 602fd2a..59b792c 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriter.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriter.java
@@ -40,6 +40,8 @@ public class RustWriter implements AutoCloseable {
     // == Modules ==
 
     public void writeModule(RustModule module) throws IOException {
+        this.writer.writeHeader();
+
         writeWithSeparator(
             module.items(),
             this::writeItem,
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
index 8b9bbe3..b5583ab 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
@@ -26,6 +26,8 @@ public class RustWriterTests {
         var string = write(writer -> writer.writeModule(rust));
 
         assertThat(string, equalTo("""
+            // Generated by hobgoblin.
+
             pub struct Rectangle {
             }