diff --git a/src/parser/grammar_basic.c b/src/parser/grammar_basic.c
index d86abb6..92113fe 100644
--- a/src/parser/grammar_basic.c
+++ b/src/parser/grammar_basic.c
@@ -372,28 +372,45 @@ struct ast *parse_shell_command(struct lexer_context *ctx)
     struct token *token = PEEK_TOKEN();
     struct ast *result = NULL;
 
-    // Grouping
-    // '(' or '{'
-    if (token->type == TOKEN_LEFT_BRACKET || token->type == TOKEN_LEFT_PAREN)
+    // '{'
+    if (token->type == TOKEN_LEFT_BRACKET)
     {
         POP_TOKEN();
         result = parse_compound_list(ctx);
         if (result == NULL)
             return NULL;
 
-        // ')' or '}'
+        // '}'
         token = PEEK_TOKEN();
-        if (token->type == TOKEN_LEFT_BRACKET
-            || token->type == TOKEN_LEFT_PAREN)
+        if (token->type == TOKEN_LEFT_BRACKET)
         {
             ast_free(&result);
-            perror("Syntax error: bracket/parenthesis mismatch");
+            perror("Syntax error: bracket mismatch");
             return NULL;
         }
 
         POP_TOKEN();
         return result;
     }
+    // '('
+    else if (token->type == TOKEN_LEFT_PAREN)
+    {
+        POP_TOKEN();
+        result = parse_compound_list(ctx);
+        if (result == NULL)
+            return NULL;
+
+        // ')'
+        token = PEEK_TOKEN();
+        if (token->type == TOKEN_LEFT_PAREN)
+        {
+            ast_free(&result);
+            perror("Syntax error: parenthesis mismatch");
+            return NULL;
+        }
+        POP_TOKEN();
+        return ast_create_subshell(result);
+    }
     else if (is_first(*token, RULE_IF))
     {
         return parse_if_rule(ctx);