1 files changed, 15 insertions, 6 deletions

diff --git a/crates/ra_ide_api/src/completion/presentation.rs b/crates/ra_ide_api/src/completion/presentation.rs
index 1b706bb13..5cabe9a32 100644
--- a/crates/ra_ide_api/src/completion/presentation.rs
+++ b/crates/ra_ide_api/src/completion/presentation.rs
@@ -109,12 +109,21 @@ impl Completions {
         if let Some(name) = name {
             let detail = macro_label(&ast_node);
 
-            let builder =
-                CompletionItem::new(CompletionKind::Reference, ctx.source_range(), name.clone())
-                    .kind(CompletionItemKind::Macro)
-                    .set_documentation(macro_.docs(ctx.db))
-                    .detail(detail)
-                    .insert_snippet(format!("{}!", name));
+            let macro_braces_to_insert = match name.as_str() {
+                "vec" => "[$0]",
+                _ => "($0)",
+            };
+            let macro_declaration = name + "!";
+
+            let builder = CompletionItem::new(
+                CompletionKind::Reference,
+                ctx.source_range(),
+                &macro_declaration,
+            )
+            .kind(CompletionItemKind::Macro)
+            .set_documentation(macro_.docs(ctx.db))
+            .detail(detail)
+            .insert_snippet(macro_declaration + macro_braces_to_insert);
 
             self.add(builder);
         }