diff --git a/compiler/parse/src/module.rs b/compiler/parse/src/module.rs
index 0852be36ee..42031bad83 100644
--- a/compiler/parse/src/module.rs
+++ b/compiler/parse/src/module.rs
@@ -52,41 +52,44 @@ pub fn parse_header<'a>(
 fn header<'a>() -> impl Parser<'a, Module<'a>, EHeader<'a>> {
     use crate::parser::keyword_e;
 
-    one_of![
-        map!(
-            and!(
-                space0_e(0, EHeader::Space, EHeader::IndentStart),
-                skip_first!(keyword_e("app", EHeader::Start), app_header())
-            ),
-            |(spaces, mut header): (&'a [CommentOrNewline], AppHeader<'a>)| {
-                header.before_header = spaces;
-
-                Module::App { header }
-            }
+    map!(
+        and!(
+            space0_e(0, EHeader::Space, EHeader::IndentStart),
+            one_of![
+                map!(
+                    skip_first!(keyword_e("app", EHeader::Start), app_header()),
+                    |mut header: AppHeader<'a>| -> Box<dyn FnOnce(&'a [CommentOrNewline]) -> Module<'a>> {
+                        Box::new(|spaces| {
+                            header.before_header = spaces;
+                            Module::App { header }
+                        })
+                    }
+                ),
+                map!(
+                    skip_first!(keyword_e("platform", EHeader::Start), platform_header()),
+                    |mut header: PlatformHeader<'a>| -> Box<dyn FnOnce(&'a [CommentOrNewline]) -> Module<'a>> {
+                        Box::new(|spaces| {
+                            header.before_header = spaces;
+                            Module::Platform { header }
+                        })
+                    }
+                ),
+                map!(
+                    skip_first!(keyword_e("interface", EHeader::Start), interface_header()),
+                    |mut header: InterfaceHeader<'a>| -> Box<dyn FnOnce(&'a [CommentOrNewline]) -> Module<'a>> {
+                        Box::new(|spaces| {
+                            header.before_header = spaces;
+                            Module::Interface { header }
+                        })
+                    }
+                )
+            ]
         ),
-        map!(
-            and!(
-                space0_e(0, EHeader::Space, EHeader::IndentStart),
-                skip_first!(keyword_e("platform", EHeader::Start), platform_header())
-            ),
-            |(spaces, mut header): (&'a [CommentOrNewline], PlatformHeader<'a>)| {
-                header.before_header = spaces;
-
-                Module::Platform { header }
-            }
-        ),
-        map!(
-            and!(
-                space0_e(0, EHeader::Space, EHeader::IndentStart),
-                skip_first!(keyword_e("interface", EHeader::Start), interface_header())
-            ),
-            |(spaces, mut header): (&'a [CommentOrNewline], InterfaceHeader<'a>)| {
-                header.before_header = spaces;
-
-                Module::Interface { header }
-            }
-        )
-    ]
+        |(spaces, make_header): (
+            &'a [CommentOrNewline],
+            Box<dyn FnOnce(&'a [CommentOrNewline]) -> Module<'a>>
+        )| { make_header(spaces) }
+    )
 }
 
 #[inline(always)]
diff --git a/compiler/parse/tests/snapshots/pass/interface_with_newline.header.result-ast b/compiler/parse/tests/snapshots/pass/interface_with_newline.header.result-ast
new file mode 100644
index 0000000000..fe67388046
--- /dev/null
+++ b/compiler/parse/tests/snapshots/pass/interface_with_newline.header.result-ast
@@ -0,0 +1,15 @@
+Interface {
+    header: InterfaceHeader {
+        name: @10-11 ModuleName(
+            "T",
+        ),
+        exposes: [],
+        imports: [],
+        before_header: [],
+        after_interface_keyword: [],
+        before_exposes: [],
+        after_exposes: [],
+        before_imports: [],
+        after_imports: [],
+    },
+}
diff --git a/compiler/parse/tests/snapshots/pass/interface_with_newline.header.roc b/compiler/parse/tests/snapshots/pass/interface_with_newline.header.roc
new file mode 100644
index 0000000000..696cdada15
--- /dev/null
+++ b/compiler/parse/tests/snapshots/pass/interface_with_newline.header.roc
@@ -0,0 +1,2 @@
+
+interface T exposes [] imports []
diff --git a/compiler/parse/tests/test_parse.rs b/compiler/parse/tests/test_parse.rs
index d575d677a1..0aaf95b559 100644
--- a/compiler/parse/tests/test_parse.rs
+++ b/compiler/parse/tests/test_parse.rs
@@ -148,6 +148,7 @@ mod test_parse {
         pass/highest_int.expr,
         pass/if_def.expr,
         pass/int_with_underscore.expr,
+        pass/interface_with_newline.header,
         pass/lowest_float.expr,
         pass/lowest_int.expr,
         pass/malformed_ident_due_to_underscore.expr,