diff --git a/compiler/parse/src/blankspace.rs b/compiler/parse/src/blankspace.rs
index 8a9e5fb388..02f290f0ad 100644
--- a/compiler/parse/src/blankspace.rs
+++ b/compiler/parse/src/blankspace.rs
@@ -317,11 +317,26 @@ fn spaces<'a>(
                                 '\n' => {
                                     state = state.newline()?;
 
-                                    // This was a newline, so end this line comment.
-                                    space_list.push(LineComment(comment_line_buf.into_bump_str()));
-                                    comment_line_buf = String::new_in(arena);
+                                    match (comment_line_buf.len(), comment_line_buf.chars().next())
+                                    {
+                                        (1, Some('#')) => {
+                                            // This is a line with `##` - that is,
+                                            // a doc comment new line.
+                                            space_list.push(DocComment(""));
+                                            comment_line_buf = String::new_in(arena);
 
-                                    line_state = LineState::Normal;
+                                            line_state = LineState::Normal;
+                                        }
+                                        _ => {
+                                            // This was a newline, so end this line comment.
+                                            space_list.push(LineComment(
+                                                comment_line_buf.into_bump_str(),
+                                            ));
+                                            comment_line_buf = String::new_in(arena);
+
+                                            line_state = LineState::Normal;
+                                        }
+                                    }
                                 }
                                 nonblank => {
                                     // Chars can have btye lengths of more than 1!
diff --git a/compiler/parse/tests/test_parse.rs b/compiler/parse/tests/test_parse.rs
index 8c94db8d72..d00da909e2 100644
--- a/compiler/parse/tests/test_parse.rs
+++ b/compiler/parse/tests/test_parse.rs
@@ -2345,18 +2345,20 @@ mod test_parse {
         let arena = Bump::new();
         let newlines = &[Newline, Newline];
         let def = Def::Body(
-            arena.alloc(Located::new(4, 4, 0, 1, Identifier("x"))),
-            arena.alloc(Located::new(4, 4, 4, 5, Num("5"))),
+            arena.alloc(Located::new(6, 6, 0, 1, Identifier("x"))),
+            arena.alloc(Located::new(6, 6, 4, 5, Num("5"))),
         );
-        let loc_def = &*arena.alloc(Located::new(4, 4, 0, 1, def));
+        let loc_def = &*arena.alloc(Located::new(6, 6, 0, 1, def));
         let defs = &[loc_def];
         let ret = Expr::SpaceBefore(arena.alloc(Num("42")), newlines);
-        let loc_ret = Located::new(6, 6, 0, 2, ret);
+        let loc_ret = Located::new(8, 8, 0, 2, ret);
         let reset_indentation = &[
             DocComment("first line of docs"),
             DocComment("    second line"),
             DocComment(" third line"),
             DocComment("fourth line"),
+            DocComment(""),
+            DocComment("sixth line after doc new line"),
         ];
         let expected = Expr::SpaceBefore(
             arena.alloc(Defs(defs, arena.alloc(loc_ret))),
@@ -2370,6 +2372,8 @@ mod test_parse {
                     ##     second line
                     ##  third line
                     ## fourth line
+                    ##
+                    ## sixth line after doc new line
                     x = 5
 
                     42