diff --git a/src/format.jule b/src/format.jule
index 92dac33..862ec4e 100644
--- a/src/format.jule
+++ b/src/format.jule
@@ -1096,9 +1096,10 @@ impl ScopeFormatter {
                     self.write(rk.key_b.ident)
                 }
                 if p {
-                    self.write(")")
+                    self.write(") ")
+                } else if rk.key_a != nil || rk.key_b != nil {
+                    self.write(" ")
                 }
-                self.write(" ")
                 self.fmt.pop_row_comments_by_c(rk.in_token.row, rk.in_token.column)
                 self.write("in ")
                 self.fmt.pop_row_comments_by_c(rk.expr.token.row, rk.expr.token.column)