diff --git a/src/dfmt.d b/src/dfmt.d
index 4fb128f..b82f140 100644
--- a/src/dfmt.d
+++ b/src/dfmt.d
@@ -302,7 +302,6 @@ private:
                 writeParens(true);
                 break;
             case tok!"mixin":
-            case tok!"assert":
                 writeToken();
                 write(" ");
                 break;